首页 > 最新文献

ECONOMIC AFFAIRS最新文献

英文 中文
Anti-capitalists, post-colonialists, and the controversy about the ‘colonisation of space’ 反资本主义者、后殖民主义者以及关于 "空间殖民化 "的争议
IF 1 Q3 ECONOMICS Pub Date : 2024-10-03 DOI: 10.1111/ecaf.12672
Rainer Zitelmann
<p>The successful Apollo programme, which achieved the first (and later five more) moon landings in the late 1960s and early 1970s, was followed by several lost decades for manned space travel. Despite NASA's accomplishments in unmanned space exploration such as the development of the Webb Space Telescope, progress in manned space exploration ground to a halt for decades. The shuttle programme, which ran from 1981 to 2011, failed to live up to expectations. A new study from Matthew H. Hersch arrives at a sobering conclusion: “By every measure, the shuttle had fallen short of even the modest hopes that had surrounded it. And the shuttle remained flying only because every effort to replace it with a better-winged, reusable craft also failed” (<span>2023</span>, p. 7).</p><p>Only the emergence of private space companies such as Elon Musk's Space X and Jeff Bezos' Blue Origin has brought a new dynamic to the space industry. According to a study by the World Economic Forum (<span>2024</span>), the space economy is expected to grow to US$1.8 trillion by 2035. Chad Anderson from the US investment firm Space Capital estimates: “Over a quarter of a trillion dollars has been invested into nearly 2,000 unique space companies over the past decade alone” (<span>2023</span>, p. xx).</p><p>However, with the emergence of a new, dynamic private space industry, criticism is also growing.</p><p>Elon Musk argues that mankind essentially has a duty to colonise other planets because sooner or later an asteroid impact could lead to the extinction of our species. Researchers today widely concur that the dinosaurs – along with 75 per cent of other life on Earth – were wiped out by a meteorite strike 66 million years ago. There is plenty of evidence of past asteroid collisions; our planet Earth bears the visible scars of countless impacts in the form of craters that can still be seen today. An asteroid with a diameter of 30–50 metres hit Arizona 50,000 years ago with 150 times the force of the atomic bomb that destroyed Hiroshima. Asteroids are often smaller, such as the one that hit the Pacific Ocean on 1 October 1990, although even that had the same explosive power as a Nagasaki bomb. If it had hit a populated area, such as a city, tens or even hundreds of thousands of people would have died.</p><p>It's not a question of whether another asteroid capable of causing mass extinction will hit the Earth at some point, but when. While science fiction movies such as <i>Armageddon</i> depict scenarios in which asteroids are successfully destroyed or diverted from their paths, the reality of such a feat would be far more complex. For Elon Musk, the human settlement of Mars is a life insurance policy against the extinction of our species and a first step on our journey towards becoming an interplanetary civilisation.</p><p>The feasibility of colonising Mars remains a topic of debate throughout the scientific community. Robert Zubrin, founder and president of the Mars Society, and
在私人太空旅行取得进展的同时,反资本主义者、觉醒意识形态鼓吹者和自称 "后殖民主义者 "的反对声也明显高涨。主张巨石和微生物作为火星合法居民的 "权利 "等论点显然是荒谬的。尤其是当你考虑到,恰恰是那些本来--说得难听点--根本不把保护私有财产放在首位,甚至常常视其为万恶之源的知识分子,突然发现自己对财产的热爱不是因为人类,而是因为其他天体上可能存在的微生物。在上述关于太空殖民的辩论中,人类学家迈克尔-阿曼-里根(Michael Oman-Reagan)提出了以下论点:"如果火星上有微生物,我认为火星属于它们。英国物理学家、地质学家和地球化专家马丁-福格(Martyn J. Fogg)在《太空定居的伦理维度》一文中驳斥了上述论点和类似论点:劳伦斯技术大学名誉教授贡萨洛-穆内瓦尔(Gonzalo Munévar)以《星光黯淡》为题,发表了一篇全面审视太空探索哲学的文章。穆内瓦尔(2023 年)对太空探索的 "意识形态 "和 "社会 "批评进行了区分。深信技术、增长和资本主义对地球造成了巨大伤害的知识分子认为太空旅行是他们认为无论如何都是错误的道路的延续。第二个论点是,用于太空探索的数十亿美元可以更好地用于解决饥饿、贫困、气候变化等紧迫的人类问题。第二个论点相对容易反驳,因为它认为消除饥饿和贫困仅仅是一个在发展援助上花费足够资金的问题。然而,非洲 60 年发展援助的证据表明,这种方法不仅无效,而且往往有害。2023年,凯利和扎克-韦纳史密斯出版了一本名为《火星上的城市》的书:2023年,凯利和扎克-韦纳史密斯出版了一本名为《火星上的城市:我们能否在太空定居,我们是否应该在太空定居,我们真的考虑清楚了吗?对他们来说,不确定因素太多了。他们认为,在遥远的未来,我们或许可以考虑在太空定居,但现在还远未到那一步(《2023》,第 87 页)。他们提出的一些问题值得思考,包括人类能否在低重力条件下安全繁衍后代以及婴儿能否在这种环境下正常发育等悬而未决的问题(《2023》,第 70-88 页)。然而,许多问题都是臆造出来的,而且很明显,作者采用了智力怀疑者的常见方法,他们首先想要一个明确的最终计划,回答所有可以想象的问题,然后才会开始行动。这与企业家的心态形成了鲜明对比,企业家会采取行动,不断解决出现的新挑战。有些担忧是荒谬的,比如国家之间用小行星互相轰炸的想法,罗伯特-祖布林(Robert Zubrin)在其书评中有效地驳斥了这一观点(祖布林,2023 年)。韦纳史密斯夫妇提出的担忧包括:如何在微重力条件下安全地进行手术(Weinersmith &amp; Weinersmith, 2023, p.65),夫妻在低重力环境下做爱时是否必须将自己拴在对方身上(p.70),如何在火星上为患有精神疾病的人提供心理治疗(p.91),在火星上长期逗留是否会对心理产生负面影响(p.109),治疗精神疾病的药物是否会受到太空辐射的负面影响(p. 110),以及从火星上获取利润的方式。作者宣称自己是所谓的 1979 年《月球协定》(《联合国关于各国在月球和其他天体上活动的协定》)1 的支持者。幸运的是,这一国际协定总共只有 17 个国家(不包括任何航天国家)签署,该协定宣布太阳系是一种特别共有形式的 res communis,在国际法中被称为 "人类共同遗产"(CHM)。作者解释了这意味着什么:"如果月球在 CHM 框架下,而你想使用月球水,你就必须通过某种方式补偿全人类"(Weinersmith &amp; Weinersmith, 2023, 第 258 页)。这种方法也可以说是太空社会主义。对于 "太空探索是一种自然冲动 "的说法,温纳史密斯夫妇认为:"我们大多数人实际上并没有太空探索的欲望:"我们中的大多数人实际上并不是著名的探险家。
{"title":"Anti-capitalists, post-colonialists, and the controversy about the ‘colonisation of space’","authors":"Rainer Zitelmann","doi":"10.1111/ecaf.12672","DOIUrl":"https://doi.org/10.1111/ecaf.12672","url":null,"abstract":"&lt;p&gt;The successful Apollo programme, which achieved the first (and later five more) moon landings in the late 1960s and early 1970s, was followed by several lost decades for manned space travel. Despite NASA's accomplishments in unmanned space exploration such as the development of the Webb Space Telescope, progress in manned space exploration ground to a halt for decades. The shuttle programme, which ran from 1981 to 2011, failed to live up to expectations. A new study from Matthew H. Hersch arrives at a sobering conclusion: “By every measure, the shuttle had fallen short of even the modest hopes that had surrounded it. And the shuttle remained flying only because every effort to replace it with a better-winged, reusable craft also failed” (&lt;span&gt;2023&lt;/span&gt;, p. 7).&lt;/p&gt;&lt;p&gt;Only the emergence of private space companies such as Elon Musk's Space X and Jeff Bezos' Blue Origin has brought a new dynamic to the space industry. According to a study by the World Economic Forum (&lt;span&gt;2024&lt;/span&gt;), the space economy is expected to grow to US$1.8 trillion by 2035. Chad Anderson from the US investment firm Space Capital estimates: “Over a quarter of a trillion dollars has been invested into nearly 2,000 unique space companies over the past decade alone” (&lt;span&gt;2023&lt;/span&gt;, p. xx).&lt;/p&gt;&lt;p&gt;However, with the emergence of a new, dynamic private space industry, criticism is also growing.&lt;/p&gt;&lt;p&gt;Elon Musk argues that mankind essentially has a duty to colonise other planets because sooner or later an asteroid impact could lead to the extinction of our species. Researchers today widely concur that the dinosaurs – along with 75 per cent of other life on Earth – were wiped out by a meteorite strike 66 million years ago. There is plenty of evidence of past asteroid collisions; our planet Earth bears the visible scars of countless impacts in the form of craters that can still be seen today. An asteroid with a diameter of 30–50 metres hit Arizona 50,000 years ago with 150 times the force of the atomic bomb that destroyed Hiroshima. Asteroids are often smaller, such as the one that hit the Pacific Ocean on 1 October 1990, although even that had the same explosive power as a Nagasaki bomb. If it had hit a populated area, such as a city, tens or even hundreds of thousands of people would have died.&lt;/p&gt;&lt;p&gt;It's not a question of whether another asteroid capable of causing mass extinction will hit the Earth at some point, but when. While science fiction movies such as &lt;i&gt;Armageddon&lt;/i&gt; depict scenarios in which asteroids are successfully destroyed or diverted from their paths, the reality of such a feat would be far more complex. For Elon Musk, the human settlement of Mars is a life insurance policy against the extinction of our species and a first step on our journey towards becoming an interplanetary civilisation.&lt;/p&gt;&lt;p&gt;The feasibility of colonising Mars remains a topic of debate throughout the scientific community. Robert Zubrin, founder and president of the Mars Society, and","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 3","pages":"572-581"},"PeriodicalIF":1.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ecaf.12672","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What is the relationship between industry-specific regulation and technology startups? 特定行业监管与初创科技企业之间有什么关系?
IF 1 Q3 ECONOMICS Pub Date : 2024-09-30 DOI: 10.1111/ecaf.12674
Liya Palagashvili, Paola A Suarez

We examine the relationship between industry-specific regulations and startup birth rates (entry) and startup ‘deaths’ (closings) in the United States and Canada during 2012–19. Our sample contains data on thousands of active and closed technology startups in the United States and Canada that were founded between January 2012 and June 2019. We use the Mercatus Center's RegData database to capture the intensity of national-level regulations. Our findings suggest that more regulated industries may exhibit lower rates of entry and that more regulated industries are associated with a greater likelihood of a startup closing. These findings seem more robust for the US than for Canada. We discuss startup funding as a potential mechanism by which regulation may impact startup closings, using our fieldwork interviews with over 100 technology startup executives and venture capital investors.

我们研究了 2012-19 年间美国和加拿大特定行业的法规与初创企业出生率(进入)和 "死亡"(关闭)之间的关系。我们的样本包含美国和加拿大在 2012 年 1 月至 2019 年 6 月期间成立的数千家活跃和关闭的初创科技公司的数据。我们使用 Mercatus 中心的 RegData 数据库来捕捉国家层面的监管强度。我们的研究结果表明,监管较多的行业可能表现出较低的进入率,而监管较多的行业与初创企业关闭的可能性较大相关。与加拿大相比,美国的这些发现似乎更为有力。我们通过对 100 多名初创科技企业高管和风险投资人的实地采访,讨论了初创企业的资金问题,这是监管可能影响初创企业倒闭的一个潜在机制。
{"title":"What is the relationship between industry-specific regulation and technology startups?","authors":"Liya Palagashvili,&nbsp;Paola A Suarez","doi":"10.1111/ecaf.12674","DOIUrl":"https://doi.org/10.1111/ecaf.12674","url":null,"abstract":"<p>We examine the relationship between industry-specific regulations and startup birth rates (entry) and startup ‘deaths’ (closings) in the United States and Canada during 2012–19. Our sample contains data on thousands of active and closed technology startups in the United States and Canada that were founded between January 2012 and June 2019. We use the Mercatus Center's RegData database to capture the intensity of national-level regulations. Our findings suggest that more regulated industries may exhibit lower rates of entry and that more regulated industries are associated with a greater likelihood of a startup closing. These findings seem more robust for the US than for Canada. We discuss startup funding as a potential mechanism by which regulation may impact startup closings, using our fieldwork interviews with over 100 technology startup executives and venture capital investors.</p>","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 3","pages":"465-486"},"PeriodicalIF":1.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ecaf.12674","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Red flags but no yellow cards: The ‘WelCond’ research on welfare conditionality and unemployed people 有红旗,无黄牌:关于福利条件和失业人员的 "WelCond "研究
IF 1 Q3 ECONOMICS Pub Date : 2024-09-11 DOI: 10.1111/ecaf.12663
Andrew Dunn

Peter Dwyer, Lisa Scullion, Katy Jones, Jenny McNeill & Alastair B. R. Stewart, The Impacts of Welfare Conditionality: Sanctions, Support and Behavioural Change. Policy Press. 2022. pp. 218. £80 (hbk). ISBN: 978-1447320111. £26.99 (pbk). ISBN: 978-1447343738. £26.99 (ebk). ISBN: 978-1447343745

Behavioural conditions have always been attached to the receipt of social security benefits for the UK's unemployed. These conditions have increased in number and scope in recent decades, alongside heavier sanctions for non-compliance, as part of a trend across OECD countries (Watts & Fitzpatrick, 2018). The UK Welfare Reform Act 2012 was a landmark in this process. Its “work search requirement” obliges claimants of unemployment benefit – now Universal Credit (UC), previously Jobseeker's Allowance (JSA) – to take “all reasonable action” and “any particular action specified by the Secretary of State, for the purpose of obtaining work” (s. 17). In practice this means that a Department for Work and Pensions (DWP) ‘Work Coach’ can now compel an unemployed UC claimant, under threat of a financial penalty, to apply for a job of their choosing. Those who leave a job voluntarily and then apply for UC can now also face a “sanction” (s. 49).

Heralding the 2012 Act, its architect, the then Secretary of State for Work and Pensions Iain Duncan Smith (2010), argued in a speech that “reinforced conditionality” to ensure claimants “take reasonable offers of work” was necessitated by the benefit system's regrettable drift towards one that “Beveridge warned against”, in which “idleness” had become “institutionalised” (see Beveridge, 1942, p. 58). In the same speech, he claimed that in the 2000s British companies had been “unable to get British people to fill” some job vacancies, so “workers from overseas stepped in”. Around this time, Duncan Smith referred to a television documentary in which some unemployed benefit claimants would not get “on a bus” to a nearby city to widen their job search (BBC, 2010). The issues Duncan Smith referred to may be persisting; there were 5.6 million UK people of working age on out-of-work benefits in December 2023, just below the record high of 5.9 million in 1993, despite 0.9 million unfilled job vacancies (see Andrews, 2024).

This review article focuses on the £2 million Economic and Social Research Council (ESRC)-funded ‘Welfare Conditionality: Sanctions, Support and Behaviour Change’ research programme (often abbreviated to ‘WelCond’). Led by Peter Dwyer, a Professor of Social Policy at the University of York, and involving academics from six universities, it ran from 2013 to 2018, just as the 2012 Act's new policies were being slowly rolled out across the country. The project's main purpose was to test

然后介绍了该项目的两个核心目标,即 "第一,从经验和理论的角度理解福利条件在促进和维持行为改变方面的作用......[和]......第二,考虑在哪些特殊情况下,使用福利条件可能或不可能被认为在道德上是合理的"(第 2 页):不少于 186 名受访者表示受到了 "制裁"(第 119 页),其中许多人感到很冤枉,有 时是因为他们受到的惩罚只是相对较轻的违法行为,如与工作辅导员会面时迟到。现行的福利条件和制裁制度 "通常无法有效地促进人们脱离社会保障福利,进入有偿劳动力市场或在其中长期发展"(第 157 页)。有很多 "工作-福利循环 "现象,这意味着受访者从无保障的就业到领取失业救济金之间来回流动。作者指出,"偶尔出现的、持续的脱离福利就业的情况很明显,但这种情况极为罕见"(第 157 页)。当地劳动力市场 "的结构决定了工作机会,因此 "受访者获得或增加有偿工作的能力与他们的行为关系不大"。研究人员注意到,经济制裁非但没有使他们重新就业,反而更有可能将申领者进一步推向疾病、犯罪和赤贫(特别见第 129-30 页)。此外,作者还发现,他们所谓的 "适得其反地遵守 "关于求职行为的严格规定,导致一些申请人每周花费 35 个小时进行徒劳无益的求职活动,以满足他们的工作指导员的要求,纯粹是为了避免受到制裁,而不是利用他们的时间去做他们认为能最大限度增加其就业机会的事情(第 125-8 页)。在 "公民权利 "和 "国家干预 "人民生活的权利方面,确定了四种截然不同的 "伦理 "立场。它们是 "契约主义、家长主义、相互主义和(无条件的)权利"(第 137 页)。为了支持"(无条件)应享权利",Dwyer(1998 年)引用了平等主义的观点,认为福利附加条件是不合理的,因为它只强加给那些 "正在经历贫困的人,却在很大程度上忽视了较富裕公民的不负责任和不作为"(第 142 页)。与此相反,受访者普遍同意长期以来支撑英国社会保障政策的福利条件性基本原则,即作为对国家福利的回报,有工作能力和达到工作年龄的人有责任寻找工作(第 147-52 页)。作者在本书最后一章的最后两句话中最充分地认可了"(无条件)应享权利 "的伦理立场:"福利附加条件会适得其反,既无效又不道德。因此,现在是时候结束对行为改变的痴迷,集中精力促进有意义的就业支持、真正的社会保障和更大的平等了"(第 160 页)。德怀尔和他的同事承认,他们原则上反对福利附加条件的做法与公众舆论不符(他们自己的受访者就证明了这一点),他们感叹道:"预测福利附加条件的消亡未免过于乐观"(第 156 页)。虽然这些作者反对附加条件的做法并不能使他们的研究失效,但他们没有提出任何改进政策的建议,而他们也认为这项政策将继续存在下去,这就无益于研究了。更具体地说,他们只字未提如何平衡申领者与纳税人的关切;相反,"较富裕公民 "的提法(见第 3 部分)暗示了一种平等主义观点,即那些对纳税人可能遇到的挫折表示关切的人应该将批判的目光转向结构性不平等。关于福利条件性原则的讨论被称为 "伦理 "讨论。与《经济事务》(Economic Affairs)杂志不同,WelCond 的研究人员倾向于以公正的科学专家自居。然而,当彼得-德怀尔(Peter Dwyer)于 2018 年 6 月 20 日出现在下议院工作与养老金委员会时,他们的偏袒显露无遗。i 德怀尔公开反对 WelCond 的受访者因首次违反规则而意外受到 "制裁"。
{"title":"Red flags but no yellow cards: The ‘WelCond’ research on welfare conditionality and unemployed people","authors":"Andrew Dunn","doi":"10.1111/ecaf.12663","DOIUrl":"https://doi.org/10.1111/ecaf.12663","url":null,"abstract":"<p>\u0000 <span>Peter Dwyer</span>, <span>Lisa Scullion</span>, <span>Katy Jones</span>, <span>Jenny McNeill</span> &amp; <span>Alastair B. R. Stewart</span>, <span><i>The Impacts of Welfare Conditionality: Sanctions, Support and Behavioural Change</i></span>. Policy Press. <span>2022</span>. pp. <span>218</span>. £80 (hbk). ISBN: 978-1447320111. £26.99 (pbk). ISBN: 978-1447343738. £26.99 (ebk). ISBN: 978-1447343745</p><p>Behavioural conditions have always been attached to the receipt of social security benefits for the UK's unemployed. These conditions have increased in number and scope in recent decades, alongside heavier sanctions for non-compliance, as part of a trend across OECD countries (Watts &amp; Fitzpatrick, <span>2018</span>). The UK Welfare Reform Act <span>2012</span> was a landmark in this process. Its “work search requirement” obliges claimants of unemployment benefit – now Universal Credit (UC), previously Jobseeker's Allowance (JSA) – to take “all reasonable action” and “any particular action specified by the Secretary of State, for the purpose of obtaining work” (s. 17). In practice this means that a Department for Work and Pensions (DWP) ‘Work Coach’ can now compel an unemployed UC claimant, under threat of a financial penalty, to apply for a job of their choosing. Those who leave a job voluntarily and then apply for UC can now also face a “sanction” (s. 49).</p><p>Heralding the 2012 Act, its architect, the then Secretary of State for Work and Pensions Iain Duncan Smith (<span>2010</span>), argued in a speech that “reinforced conditionality” to ensure claimants “take reasonable offers of work” was necessitated by the benefit system's regrettable drift towards one that “Beveridge warned against”, in which “idleness” had become “institutionalised” (see Beveridge, <span>1942</span>, p. 58). In the same speech, he claimed that in the 2000s British companies had been “unable to get British people to fill” some job vacancies, so “workers from overseas stepped in”. Around this time, Duncan Smith referred to a television documentary in which some unemployed benefit claimants would not get “on a bus” to a nearby city to widen their job search (BBC, <span>2010</span>). The issues Duncan Smith referred to may be persisting; there were 5.6 million UK people of working age on out-of-work benefits in December 2023, just below the record high of 5.9 million in 1993, despite 0.9 million unfilled job vacancies (see Andrews, <span>2024</span>).</p><p>This review article focuses on the £2 million Economic and Social Research Council (ESRC)-funded ‘Welfare Conditionality: Sanctions, Support and Behaviour Change’ research programme (often abbreviated to ‘WelCond’). Led by Peter Dwyer, a Professor of Social Policy at the University of York, and involving academics from six universities, it ran from 2013 to 2018, just as the 2012 Act's new policies were being slowly rolled out across the country. The project's main purpose was to test ","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 3","pages":"602-613"},"PeriodicalIF":1.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ecaf.12663","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Islamic economics: Intertemporal prices, interest rates and discount rates 伊斯兰经济学:跨时价格、利率和贴现率
IF 1 Q3 ECONOMICS Pub Date : 2024-08-05 DOI: 10.1111/ecaf.12659
Gerald R Steele
<p>The discussion draws upon core aspects of microeconomics and macroeconomics. Relevant comparisons are between (<i>a</i>) analyses as respectively introduced by Adam Smith and John Maynard Keynes, and (<i>b</i>) analyses constrained by Islamic religious law (Sharia) as interpreted and developed by Islamic scholars.</p><p>The views here reported reflect conversations at the conference ‘Mainstreaming Islamic Economics in Islamic Banking and Finance’ held at the Markfield Institute of Higher Education, Leicestershire, UK, in July 2023. The discussion also draws from Steele (<span>2022</span>) and Koehler (<span>2023</span>).</p><p>The ‘classical’ economic distinctions of the eighteenth century between the economically productive contributions of labourers, landowners, and capitalists were superseded in the late nineteenth century by the analytical approach of ‘neoclassical’ economics. The focus then became supply, demand, and the costs incurred in producing and sending goods and services to market. With production and distribution occurring over periods of varying length, payments forthcoming further into the future generally have a lower commercial value than payments immediately received. That distinction is systematised in the valuation of discounted cash flows. In broad terms, as labour-intensive methods generally deliver goods promptly to market, capital-intensive methods deliver greater volumes over extended periods.</p><p>In making appropriate adjustments, as directed by competitive discount rates, cost-efficient investments are achievable: for example, those relating to hiring premises, purchasing materials and machinery, recruiting labour and marketing products. As discount rates fall/rise, optimal readjustments to those components can be made. Motivated by competition, returns from production periods of different length eventually equalise. Such systematic adjustments underpin Austrian business cycle theory (see Steele, <span>1988</span>, <span>1992</span>).</p><p>Under a planned (state-controlled) system, dirigiste interventions might set production targets. In a competitive free-enterprise economy, decisions taken by consumers and businesses determine market prices and sales. Large profits and disastrous failures are features common to both. The general relevance is (<i>a</i>) that shortages and surpluses are indicative of suboptimal adjustments, and (<i>b</i>) that all investments are intertemporal activities, where the application of appropriate discount rates allows rational evaluations of prospective returns across different production periods.</p><p>Schematically, the mathematical presentations of interest rates and discount rates are conceptually equivalent: one forward-looking, the other backward-looking. Together, it is those presentations that indicate optimal deployments of labour, capital and other productive inputs. Yet, where time per se is generally relevant to profitability, it is only in respect of the payment of intere
随着变革的步伐加快,对法学裁决的要求也越来越高,法特瓦可能需要合并不同的思想流派,或决定如何通过创新来适应新的风险管理实践。与此平行的考虑因素涉及西方普通法(也称判例法)的发展实践;也就是说,先例是由司法当局和公共陪审团确定的,他们的审议工作受到先前类似先例的制约。为了消除矛盾和/或混乱,普通法可能会被立法所取代。独立银行和金融公司在正规化的 "市场 "中竞争是最近的发展。作为一家德国信贷机构,Bankhaus August Lenz &amp; Co.AG 的支付服务部门于 2022 年被 Raisin UK 收购,Raisin UK 是一个在线平台,为英国境内外 400 多家银行、房屋建筑协会和符合伊斯兰教法的账户提供服务。正如英国授权银行受到英国金融服务补偿计划(Financial Services Compensation Scheme)的保护一样,在英国合作银行开立的账户也同样受到保护。作为最后的 "保证",伊斯兰银行可承诺 "补偿 "提议,如果利润低于商定的 "预期利润率",则适用该提议。宏观经济学是二十世纪的 "创新"。随着 20 世纪 30 年代大萧条的长期化,约翰-梅纳德-凯恩斯宣传了这样一种观点,即可以(也应该)通过管理政府行为来维持充分就业4 。鉴于大部分税收来自于劳动所得,在经济衰退时,收入减少,社会和福利支出就会增加:也就是说,主权预算盈余与商业周期成反比。因此,"如果各国能够学会通过国内政策为自己提供充分就业......就不需要任何重要的经济力量来使任何一个国家的利益与其邻国的利益相悖"(凯恩斯,1936 年,第 382 页)。从英国在 20 世纪 40 年代的最初尝试到今天,有益的社会和政治结果5 一直是英国财政部和英格兰银行的目标。战后的初步复苏使人们对宏观经济举措寄予厚望,但长期的成功却令人失望。为了使宏观经济干预措施行之有效,有必要对经济现状和未来的预期走势进行经济预测,无论是否有财政和货币干预措施。英国前财政大臣丹尼斯-希利(Denis Healey)将宏观经济预测比作天气,表达了他的普遍失望:"虽然准确的预测是政策协调的先决条件,但事实证明,宏观经济预测一般不会比统计推断更好。经济预测偶尔准确,通常是其数量和多样性的结果。因此,对经济预测者有两种分类:"不知道的人和不知道自己不知道的人"。同样令人痛心的还有这样的评论:"经济预测的唯一作用就是让占星术看起来值得尊敬"。为了应对这种诱惑,英格兰银行的 "基准利率 "决定已不再受财政部的影响。然而,不同政客的大胆主张--激发了 "独立中央银行 "的概念--却被另一种解释所削弱。7 与欧洲和北美的传统中央银行大体一致,英格兰银行的直接政策目标是稳定物价(将通胀率保持在 2%),然后支持政府的经济政策,包括增长和就业目标。这意味着银行利率(以及对未来利率水平的预期)会影响所有期限的利率,因此是金融机构、商业银行和国际货币估值决策的核心。宏观经济分析离不开财政政策(由主权国家财政部制定)和货币政策(由主权国家中央银行制定),两者的后果相互依存。例如,如果赤字支出推动物价上涨,货币政策就必须更加严格,以抑制通货膨胀。
{"title":"Islamic economics: Intertemporal prices, interest rates and discount rates","authors":"Gerald R Steele","doi":"10.1111/ecaf.12659","DOIUrl":"https://doi.org/10.1111/ecaf.12659","url":null,"abstract":"&lt;p&gt;The discussion draws upon core aspects of microeconomics and macroeconomics. Relevant comparisons are between (&lt;i&gt;a&lt;/i&gt;) analyses as respectively introduced by Adam Smith and John Maynard Keynes, and (&lt;i&gt;b&lt;/i&gt;) analyses constrained by Islamic religious law (Sharia) as interpreted and developed by Islamic scholars.&lt;/p&gt;&lt;p&gt;The views here reported reflect conversations at the conference ‘Mainstreaming Islamic Economics in Islamic Banking and Finance’ held at the Markfield Institute of Higher Education, Leicestershire, UK, in July 2023. The discussion also draws from Steele (&lt;span&gt;2022&lt;/span&gt;) and Koehler (&lt;span&gt;2023&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;The ‘classical’ economic distinctions of the eighteenth century between the economically productive contributions of labourers, landowners, and capitalists were superseded in the late nineteenth century by the analytical approach of ‘neoclassical’ economics. The focus then became supply, demand, and the costs incurred in producing and sending goods and services to market. With production and distribution occurring over periods of varying length, payments forthcoming further into the future generally have a lower commercial value than payments immediately received. That distinction is systematised in the valuation of discounted cash flows. In broad terms, as labour-intensive methods generally deliver goods promptly to market, capital-intensive methods deliver greater volumes over extended periods.&lt;/p&gt;&lt;p&gt;In making appropriate adjustments, as directed by competitive discount rates, cost-efficient investments are achievable: for example, those relating to hiring premises, purchasing materials and machinery, recruiting labour and marketing products. As discount rates fall/rise, optimal readjustments to those components can be made. Motivated by competition, returns from production periods of different length eventually equalise. Such systematic adjustments underpin Austrian business cycle theory (see Steele, &lt;span&gt;1988&lt;/span&gt;, &lt;span&gt;1992&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;Under a planned (state-controlled) system, dirigiste interventions might set production targets. In a competitive free-enterprise economy, decisions taken by consumers and businesses determine market prices and sales. Large profits and disastrous failures are features common to both. The general relevance is (&lt;i&gt;a&lt;/i&gt;) that shortages and surpluses are indicative of suboptimal adjustments, and (&lt;i&gt;b&lt;/i&gt;) that all investments are intertemporal activities, where the application of appropriate discount rates allows rational evaluations of prospective returns across different production periods.&lt;/p&gt;&lt;p&gt;Schematically, the mathematical presentations of interest rates and discount rates are conceptually equivalent: one forward-looking, the other backward-looking. Together, it is those presentations that indicate optimal deployments of labour, capital and other productive inputs. Yet, where time per se is generally relevant to profitability, it is only in respect of the payment of intere","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 3","pages":"582-588"},"PeriodicalIF":1.0,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ecaf.12659","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring the state or the market: From laissez faire to market fundamentalism By Vito Tanzi. Cambridge University Press. 2023. 232 pp. £70.00 (hbk). ISBN: 978-100943447. £22.99 (pbk). ISBN: 978-1009434478. £21.84 (ebk). ISBN: 978-1009434430 监督国家或市场:从自由放任到市场原教旨主义 作者:Vito Tanzi。剑桥大学出版社。 2023.232页。70.00英镑(平装本)。ISBN:978-100943447。£22.99 (pbk).ISBN:978-1009434478。21.84 英镑(电子书)。ISBN: 978-1009434430
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12635
Carlo Stagnaro
{"title":"Monitoring the state or the market: From laissez faire to market fundamentalism By Vito Tanzi. Cambridge University Press. 2023. 232 pp. £70.00 (hbk). ISBN: 978-100943447. £22.99 (pbk). ISBN: 978-1009434478. £21.84 (ebk). ISBN: 978-1009434430","authors":"Carlo Stagnaro","doi":"10.1111/ecaf.12635","DOIUrl":"https://doi.org/10.1111/ecaf.12635","url":null,"abstract":"","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"423-425"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141487945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The economics of China's Holistic View of National Security: A preliminary assessment 中国整体国家安全观的经济学意义:初步评估
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12646
Kerry Liu

From December 2020, China made a significant shift towards prioritising security over development. This study delves into the economic repercussions of China's security policy, specifically the Holistic View of National Security. The evolution of this security policy is analysed utilising Baidu Index data. The components of the policy, encompassing political, economic, financial and technology security, are scrutinised, with the economic burdens it imposes being highlighted. China's recent legislative measures concerning national security are assessed, with their potential to hamper economic growth. The adverse effects of the security policy on the economy are uncovered by examining foreign direct investment data, industry sector trends, and the responses of the largest listed firms.

自 2020 年 12 月起,中国开始向安全优先于发展的方向转变。本研究深入探讨了中国安全政策,特别是 "整体国家安全观 "对经济的影响。本研究利用百度指数数据分析了这一安全政策的演变。该政策的组成部分包括政治、经济、金融和技术安全,并强调了其带来的经济负担。评估了中国近期有关国家安全的立法措施及其阻碍经济增长的可能性。通过研究外国直接投资数据、行业趋势和最大上市公司的反应,揭示了安全政策对经济的不利影响。
{"title":"The economics of China's Holistic View of National Security: A preliminary assessment","authors":"Kerry Liu","doi":"10.1111/ecaf.12646","DOIUrl":"https://doi.org/10.1111/ecaf.12646","url":null,"abstract":"<p>From December 2020, China made a significant shift towards prioritising security over development. This study delves into the economic repercussions of China's security policy, specifically the Holistic View of National Security. The evolution of this security policy is analysed utilising Baidu Index data. The components of the policy, encompassing political, economic, financial and technology security, are scrutinised, with the economic burdens it imposes being highlighted. China's recent legislative measures concerning national security are assessed, with their potential to hamper economic growth. The adverse effects of the security policy on the economy are uncovered by examining foreign direct investment data, industry sector trends, and the responses of the largest listed firms.</p>","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"218-244"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141487946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pox Romana: The plague that shook the Roman world By Colin Elliott, Princeton University Press. 2024. pp. 328. £28.00 (hbk). ISBN: 978-0691219158. £19.60 (ebk). ISBN: 978-0691220697 罗马痘:震撼罗马世界的瘟疫》,Colin Elliott 著,普林斯顿大学出版社。 2024. pp.328.28.00英镑(精装本)。ISBN:978-0691219158。19.60英镑(电子书)。ISBN: 978-0691220697
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12639
Mark Koyama
{"title":"Pox Romana: The plague that shook the Roman world By Colin Elliott, Princeton University Press. 2024. pp. 328. £28.00 (hbk). ISBN: 978-0691219158. £19.60 (ebk). ISBN: 978-0691220697","authors":"Mark Koyama","doi":"10.1111/ecaf.12639","DOIUrl":"https://doi.org/10.1111/ecaf.12639","url":null,"abstract":"","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"426-428"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Milton Friedman: The last conservative By Jennifer Burns. Farrar, Straus and Giroux. 2023. pp. 592. £30.00 (hbk). ISBN: 978–0374601140. £17.38 (pbk). ISBN: 978-1250338204. £12.99 (ebk). ISBN: 978-0374601157 米尔顿-弗里德曼最后的保守派 作者:Jennifer Burns。Farrar, Straus and Giroux.30.00 英镑(精装本)。ISBN:978-0374601140。17.38 英镑(精装本)。ISBN:978-1250338204。12.99英镑(电子书)。ISBN: 978-0374601157
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12655
Tom Clougherty
{"title":"Milton Friedman: The last conservative By Jennifer Burns. Farrar, Straus and Giroux. 2023. pp. 592. £30.00 (hbk). ISBN: 978–0374601140. £17.38 (pbk). ISBN: 978-1250338204. £12.99 (ebk). ISBN: 978-0374601157","authors":"Tom Clougherty","doi":"10.1111/ecaf.12655","DOIUrl":"https://doi.org/10.1111/ecaf.12655","url":null,"abstract":"","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"436-438"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Covid-19 and Sweden: What constitutes success? A response to Fredrik Andersson and Lars Jonung Covid-19 和瑞典:什么是成功?回应 Fredrik Andersson 和 Lars Jonung
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12630
David Goldsmith
{"title":"Covid-19 and Sweden: What constitutes success? A response to Fredrik Andersson and Lars Jonung","authors":"David Goldsmith","doi":"10.1111/ecaf.12630","DOIUrl":"https://doi.org/10.1111/ecaf.12630","url":null,"abstract":"","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"374-375"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The ‘means’ and the ‘ends’ of economic calculation: The missing aspect of an epochal dispute 经济计算的 "手段 "与 "目的":一场划时代争端的缺失
IF 1 Q3 ECONOMICS Pub Date : 2024-06-27 DOI: 10.1111/ecaf.12640
Dmitrii Trubnikov

Current technological advances have revived the old socialist calculation debate. While the arguments on the socialist side appear to be backed by exciting technological developments, the pro-market camp still mainly relies on the classical thinking of the Austrian school. A reasonable way to reinvigorate the free-market thesis is to look at the ends of economic calculations, intentionally overlooked during the classical period of the debate. A valuable supplement to the contemporary pro-market position could be found in the ordoliberal vision that emphasised the interdependence of various spheres and the power problem.

当前的技术进步重新引发了旧的社会主义计算辩论。虽然社会主义一方的论点似乎得到了令人振奋的技术发展的支持,但支持市场的阵营仍然主要依赖奥地利学派的经典思想。重振自由市场论点的一个合理途径是审视经济计算的两端,这在经典辩论时期被有意忽略了。强调各领域相互依存和权力问题的秩序自由主义观点可以为当代支持市场的立场提供有价值的补充。
{"title":"The ‘means’ and the ‘ends’ of economic calculation: The missing aspect of an epochal dispute","authors":"Dmitrii Trubnikov","doi":"10.1111/ecaf.12640","DOIUrl":"https://doi.org/10.1111/ecaf.12640","url":null,"abstract":"<p>Current technological advances have revived the old socialist calculation debate. While the arguments on the socialist side appear to be backed by exciting technological developments, the pro-market camp still mainly relies on the classical thinking of the Austrian school. A reasonable way to reinvigorate the free-market thesis is to look at the ends of economic calculations, intentionally overlooked during the classical period of the debate. A valuable supplement to the contemporary pro-market position could be found in the ordoliberal vision that emphasised the interdependence of various spheres and the power problem.</p>","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"44 2","pages":"281-293"},"PeriodicalIF":1.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
ECONOMIC AFFAIRS
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1