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Demand for Quality, Variable Markups and Misallocation: Evidence from India 质量需求、可变加价和错配:来自印度的证据
Pub Date : 2020-01-01 DOI: 10.2139/ssrn.3685273
Apoorv Gupta
I study how demand-side factors affect markups and propose a new methodology to correct for bias in misallocation losses generated by variable markups. Using data on Indian firms, I first document two key correlations: marginal costs and markups are increasing in firm size. I then explore how these correlations are driven by two factors: the assortative matching of wealthier consumers to larger firms, and the lower demand elasticity of wealthier consumers. Results on how firms across the size distribution change their markups in response to exogenous demand shocks to poor households provide support to the demand-based markup channel: producing better quality and selling to wealthier, less demand elastic households lead larger firms to incur higher costs and charge higher markups. This demand-driven markup dispersion lowers gains from reallocation because firms also adjust their markups in response to policies that may improve allocative efficiency. I show that firms' pass-through of changes in their costs into prices is a sufficient statistic to account for these endogenous markup adjustments. Gains from reallocation are 50 percent lower due to demand-driven variable markups.
我研究了需求侧因素如何影响加价,并提出了一种新的方法来纠正由可变加价产生的错配损失的偏差。利用印度公司的数据,我首先证明了两个关键的相关性:边际成本和加成率随着公司规模的增加而增加。然后,我探讨了这些相关性是如何由两个因素驱动的:富裕消费者与大公司的分类匹配,以及富裕消费者的需求弹性较低。关于企业如何根据对贫困家庭的外生需求冲击而改变其加价的结果,为基于需求的加价渠道提供了支持:生产更好的质量并向更富裕、需求弹性更小的家庭销售,导致大企业承担更高的成本并收取更高的加价。这种由需求驱动的加价分散降低了再分配的收益,因为企业也会根据可能提高配置效率的政策调整加价。我表明,企业将成本变化传递到价格上的统计数据足以解释这些内生的加价调整。由于需求驱动的可变加价,再分配的收益降低了50%。
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引用次数: 3
The Role of Income and Substitution in Commodity Demand 收入和替代在商品需求中的作用
Pub Date : 2020-01-01 DOI: 10.1596/1813-9450-9122
J. Baffes, A. Kabundi, P. Nagle
We estimate income elasticities of demand for three energy and six base metal commodities and their group aggregates. The elasticities, which vary with income levels, are estimated using a panel autoregressive distributed lag model covering the period 1965–2017, for up to 63 countries. We report three findings. First, most income elasticities are inversely proportional to income and decline rapidly as income rises. This implies commodity demand growth slows as economies develop, consistent with the dematerialization hypothesis. At median per capita income levels, the elasticity for metals (in aggregate) was 0.9, while that of energy was 0.7. Second, there is significant heterogeneity between commodities, both in terms of income elasticities and in terms of the performance of the model, with larger commodities and group aggregates performing better. Finally, we find evidence of substitution between commodities (e.g. oil/coal, aluminum/copper), estimated by the inclusion of the prices of similar commodities.
我们估计了三种能源和六种基本金属商品及其集团总量的需求的收入弹性。弹性随收入水平而变化,使用涵盖1965-2017年期间的面板自回归分布滞后模型对多达63个国家进行了估计。我们报告了三个发现。首先,大多数收入弹性与收入成反比,并随着收入的增加而迅速下降。这意味着,随着经济的发展,大宗商品需求增长会放缓,这与去物质化假说是一致的。按人均收入中位数计算,金属(总体)的弹性为0.9,而能源的弹性为0.7。其次,商品之间存在显著的异质性,无论是在收入弹性方面还是在模型的表现方面,越大的商品和群体总量表现得更好。最后,我们发现了商品(如石油/煤炭、铝/铜)之间替代的证据,这是通过纳入类似商品的价格来估计的。
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引用次数: 20
Everyday Regular Prices 日常正常价格
Pub Date : 2020-01-01 DOI: 10.2139/ssrn.3517176
N. Berardi, Federico Ravenna, M. Samano
Using a novel dataset from a large supermarket retailer in a European country that never engages in temporary sales, we establish that prices are actually as sticky as regular prices. Circumventing the debate on whether sales have to be included or excluded from price adjustments, we find evidence consistent with state-dependent price setting in a multiproduct firm. In particular, our data exhibit responsiveness of prices to changes to aggregate demand shifts, a more than trivial share of very small price changes, synchronization of price changes across items especially within the same product category. Price rigidity and the extent of state-dependence is heterogeneous across items. In particular, we find that pricing of top sales items (and even more of private label ones) is more flexible and state-dependent, which is consistent with price setting in a multiproduct firm characterized by rational inattention.
使用来自欧洲国家一家大型超市零售商的新数据集,我们确定价格实际上与常规价格一样具有粘性。绕开价格调整是否包括销售的争论,我们发现了与多产品企业中国家依赖价格设定一致的证据。特别是,我们的数据显示了价格对总需求变化的响应性,非常小的价格变化所占的份额非常小,跨项目价格变化的同步性,特别是在同一产品类别中。价格刚性和国家依赖程度在不同项目之间是不同的。特别是,我们发现顶级销售产品(甚至更多的自有品牌产品)的定价更加灵活和依赖于国家,这与以理性不注意为特征的多产品企业的价格设定一致。
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引用次数: 1
Upward Pricing Pressure in Oligopoly With Competitive Fringe 具有竞争边缘的寡头垄断的价格上行压力
Pub Date : 2020-01-01 DOI: 10.2139/ssrn.3713945
Marcelo Henrique Shinkoda, M. Braga, Valéria Gama Fully Bressan
Farrell and Shapiro (F&S, 2010) proposed an Upward Pricing Pressure (UPP) approach to merger screening between two symmetrical firms. According to them, this UPP approach is more practical than concentration-based methods. However, it fails because it does not incorporate all the theoretical effects which set the price. This article sets out to close two specific gaps in the UPP. First, the case of the industry which has a set of firms with asymmetric costs is addressed. Mathiesen et al. (2012) show that UPP screening could present a false-positive in asymmetric cases. To correct this, the study includes a competitive fringe in the feedback effects, and thereby rectifies the symmetric and asymmetric effects in pricing pressure. Second, when the asymmetric effect comes from only dominant side, the lack of representativeness of demand is then addressed. The study shows that the model presented by F&S is valid only for cases where the elasticity of demand is unitary. If that is not the case, the original model is biased. Finally, after filling both gaps, the validity of the relevant-market term in industrial organization is discussed and was concluded to be out of date. For the authors, the regulator just needs to set a channel between products in a convex set to establish a merger screening.
法雷尔和夏皮罗(F&S, 2010)提出了一种向上定价压力(UPP)方法来筛选两个对称企业之间的合并。他们认为,这种UPP方法比基于浓度的方法更实用。然而,它失败了,因为它没有包括所有设定价格的理论效应。本文旨在弥补UPP中的两个具体差距。首先,讨论了具有一组成本不对称的企业的行业情况。Mathiesen等人(2012)表明,UPP筛查可能会在不对称病例中出现假阳性。为了纠正这一点,本研究在反馈效应中纳入了竞争边缘,从而纠正了定价压力中的对称和不对称效应。其次,当不对称效应仅来自主导方时,则解决了需求缺乏代表性的问题。研究表明,F&S提出的模型仅对需求弹性为一元的情况有效。如果不是这样,那么原来的模型就是有偏差的。最后,在填补了这两个空白之后,对产业组织中相关市场术语的有效性进行了讨论,并得出了相关市场术语已经过时的结论。本文认为,监管者只需在凸集中设置产品之间的通道,即可建立并购筛选机制。
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引用次数: 0
Spatial Differentiation and Market Power in Input Procurement: Evidence from a Structural Model of the Corn Market 投入品采购的空间分异与市场力量:来自玉米市场结构模型的证据
Pub Date : 2020-01-01 DOI: 10.2139/ssrn.3536733
Jinho Jung, Juan P. Sesmero, R. Siebert
We estimate the cost of transporting corn and the resulting degree of spatial differentiation among downstream firms that buy corn from upstream farmers and examine whether such differentiation softens competition enabling buyers to exert market power (defined as the ability to pay a price for corn that is below its marginal value product net of processing cost). We estimate a structural model of spatial competition using corn procurement data from the U.S. state of Indiana from 2004 to 2014. We adopt a strategy that allows us to estimate firm-level structural parameters while using aggregate data. Our results return a transportation cost of $0.12 per bushel per mile (5% of the corn price under average distance traveled), which provides evidence of spatial differentiation among buyers. The estimated average markdown is $0.80 per bushel (16% of the average corn price in the sample), of which $0.34 is explained by spatial differentiation and the rest by the fact that firms operated under binding capacity constraints. We also find that corn prices paid to farmers at the mill gate are independent of distance between the plant and the farm, providing evidence that firms do not engage in spatial price discrimination. Finally, we evaluate the effect of hypothetical mergers on input markets and farm surplus. A merger between nearby ethanol producers eases competition, increases markdowns by 20%, and triggers a sizable reduction in farm surplus. In contrast, a merger between distant buyers has little effect on competition and markdowns.
我们估计了从上游农户购买玉米的下游企业之间运输玉米的成本和由此产生的空间分化程度,并研究了这种分化是否软化了竞争,使买家能够发挥市场力量(定义为支付低于加工成本净边际价值的玉米价格的能力)。本文利用2004 - 2014年美国印第安纳州的玉米采购数据估算了空间竞争的结构模型。我们采用一种策略,使我们能够在使用汇总数据的同时估计公司层面的结构参数。我们的结果显示,运输成本为每蒲式耳每英里0.12美元(平均运输距离下玉米价格的5%),这提供了买家之间空间差异的证据。估计的平均降价幅度为每蒲式耳0.80美元(样本中玉米平均价格的16%),其中0.34美元是由空间差异造成的,其余的是企业在产能约束下经营的事实。我们还发现,在工厂门口支付给农民的玉米价格与工厂和农场之间的距离无关,这提供了企业不参与空间价格歧视的证据。最后,我们评估了假设并购对投入市场和农业剩余的影响。附近乙醇生产商之间的合并缓解了竞争,增加了20%的降价幅度,并引发了农业盈余的大幅减少。相比之下,遥远买家之间的合并对竞争和降价几乎没有影响。
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引用次数: 2
Firms Far Up: Productivity, Agglomeration, and High-Growth Firms in Ethiopia 企业向上:埃塞俄比亚的生产率、集聚和高增长企业
Pub Date : 2019-12-30 DOI: 10.1596/1813-9450-9099
A. G. Goswami
High-growth firms have been widely studied in advanced countries, but little is known about such stellar performers in Africa. Using establishment-level data from Ethiopia, this paper finds that the incidence of high-growth firms stands at an average of 7 percent, a figure comparable to that of advanced countries. High-growth episodes are short-lived, and the likelihood of survival or a subsequent episode is not any higher for high-growth firms. It is difficult for firms to sustain high growth, and the likelihood of a repeated episode is low. There is only a 6.5 percent chance that a manufacturing plant in Ethiopia will repeat a high-growth event in the subsequent three-year period. This likelihood is not greater than that of plants that did not experience high growth in the previous period. The paper explores the drivers of high growth and finds a tight link between exemplary performance and initial plant productivity, which is robust to many controls, including plant location. Plants located in Ethiopia's capital city or agglomerations have a higher probability of high growth. And high growth in plant employment is found to be self-reinforcing, that is, past high-growth experience is positively and significantly associated with subsequent growth in firm productivity.
发达国家对高增长公司进行了广泛的研究,但对非洲如此出色的公司却知之甚少。本文利用埃塞俄比亚的企业数据发现,高增长企业的发生率平均为7%,这一数字与发达国家相当。高增长时期是短暂的,对于高增长公司来说,生存下来或出现后续时期的可能性并不高。企业很难维持高增长,而且重演的可能性很低。埃塞俄比亚的一家制造工厂在接下来的三年里重复高增长事件的几率只有6.5%。这种可能性并不比在前一时期没有经历高增长的植物更大。本文探讨了高增长的驱动因素,并发现典型绩效与初始植物生产力之间存在紧密联系,这对包括植物位置在内的许多控制都具有鲁棒性。位于埃塞俄比亚首都或城市群的工厂有更高的高增长可能性。工厂就业的高增长是自我强化的,也就是说,过去的高增长经验与随后的企业生产率增长呈正相关。
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引用次数: 6
Effect of Capital, Technology, Labor, and Production of Revenues 资本、技术、劳动力和收入生产的效应
Pub Date : 2019-12-30 DOI: 10.2139/ssrn.3511245
Cintya Kusuma
The purpose of this study was to determine the influence of capital, production, technology, and labor to total revenue. This study was conducted using data collection techniques as much as 200 respondents. Data was collected by questionnaire and use software Smart PLS v.3 as an aid in calculating the results of the research. Once the research is done, it could be concluded from this research that capital, production, technology and manpower positive and significant impact on revenue. Capital and labor indirect effect on revenues through production.
本研究的目的是确定资本、生产、技术和劳动力对总收入的影响。这项研究是使用数据收集技术进行的,多达200名受访者。通过问卷调查收集数据,并使用Smart PLS v.3软件辅助计算研究结果。一旦研究完成,从本研究中可以得出结论,资本、生产、技术和人力对收入有积极而显著的影响。资本和劳动力通过生产间接影响收入。
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引用次数: 1
Platform Pricing with Strategic Buyers: The Impact of Future Production Cost 有战略买家的平台定价:未来生产成本的影响
Pub Date : 2019-12-17 DOI: 10.2139/ssrn.2372461
Mei Lin, X. Pan, Quan Zheng
Two‐sided platforms are often coupled with exclusive hardware products that connect two sides of users, the consumers of the hardware product (i.e., buyers) and the application developers (i.e., sellers). The hardware product in the platform business model introduces three important issues that are not yet well understood in the literature of platform pricing: potentially downward‐trending production cost, product quality improvements, and consumers’ strategic behaviors. Using analytical modeling, our study explicitly factors in these issues in analyzing a monopoly platform owner’s two‐sided pricing problem. The platform sequentially introduces and prices quality‐improving hardware products, for which the costliness of quality may decrease. Strategic buyers make purchasing and upgrading decisions, which dynamically determine the buyer‐side network size. Meanwhile, the seller‐side network size is determined endogenously. We find that, an increase in the likelihood or magnitude of the future costliness reduction raises the initial buyer‐side price of the low‐quality product and lowers the seller‐side fee. This strategy, in turn, creates an indirect intertemporal effect that allows the platform to also raise the buyer‐side price(s) of the product(s) sold later. These findings contrast with conventional wisdom and provide an economic explanation for premium introductory pricing of many platform products. Moreover, we find that strengthening the network effect can result in more pronounced increases in the buyer‐side prices.
双边平台通常与专用硬件产品相结合,连接双方用户,硬件产品的消费者(即买家)和应用程序开发人员(即卖家)。平台商业模式中的硬件产品引入了三个重要的问题,这些问题在平台定价的文献中尚未得到很好的理解:潜在的下降趋势的生产成本、产品质量的改进和消费者的战略行为。利用分析模型,我们的研究在分析垄断平台所有者的双边定价问题时明确地考虑了这些问题。该平台将陆续推出提高质量的硬件产品,并对其进行定价,从而降低质量成本。战略买家做出购买和升级决策,这动态地决定了买方网络的规模。同时,卖方网络的规模是内生的。我们发现,未来成本降低的可能性或幅度的增加会提高低质量产品的初始买方价格,并降低卖方费用。这一策略反过来又创造了一种间接的跨期效应,使平台也可以提高随后销售产品的买方价格。这些发现与传统观点形成对比,并为许多平台产品的优质入门定价提供了经济解释。此外,我们发现,加强网络效应可以导致买方价格更明显的上涨。
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引用次数: 13
Advertising on Online Marketplaces: Information Asymmetry and the Relevance of Sponsored Listings 在线市场上的广告:信息不对称和赞助列表的相关性
Pub Date : 2019-12-15 DOI: 10.2139/ssrn.3013468
Vibhanshu Abhishek, Kinshuk Jerath, Siddhartha Sharma
Advertising on e-commerce marketplaces, wherein sponsored product listings are interleaved with organic product listings, is a large and growing phenomenon. In this paper, we both theoretically and empirically study whether including sponsored listings improves or hurts the overall quality and relevance of the set of products displayed to consumers. Our theoretical analysis reveals that the relevance of the ads to the consumers' search queries depends on the level of information asymmetry between the marketplace owner and the sellers who sell products with different degrees of relevance. Specifically, when information asymmetry is low (high), i.e., the platform can (cannot) easily distinguish between high- and low-relevance sellers, then low-relevance (high-relevance) sellers have a greater incentive to advertise. However, even when low-relevance products are displayed as ads, consumers end up finding well-matching products as long as search and evaluation costs are reasonable; therefore, the overall impact on sales is relatively small while the marketplace benefits from the additional revenue from selling ads. We obtain data from a large-scale field experiment run at Flipkart, a leading online marketplace in India, and find that various empirical patterns implied by our theoretical results hold in the data. Our study provides several practical implications for managers of online marketplaces.
在电子商务市场上,赞助产品列表与有机产品列表交织在一起,这是一个庞大且不断增长的现象。在本文中,我们从理论和实证两方面研究了包含赞助列表是否会提高或损害展示给消费者的产品集的整体质量和相关性。我们的理论分析表明,广告与消费者搜索查询的相关性取决于市场所有者和销售具有不同程度相关性产品的卖家之间的信息不对称程度。具体来说,当信息不对称低(高)时,即平台可以(不能)轻易区分高相关性和低相关性的卖家,那么低相关性(高相关性)的卖家就有更大的广告动机。然而,即使低相关性产品作为广告展示,只要搜索和评估成本合理,消费者最终也会找到匹配良好的产品;因此,对销售的总体影响相对较小,而市场从销售广告的额外收入中受益。我们从印度领先的在线市场Flipkart进行的大规模现场实验中获得数据,并发现我们的理论结果所隐含的各种经验模式都存在于数据中。我们的研究为在线市场的管理者提供了一些实际的启示。
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引用次数: 6
Power and Productivity: Institutions, Ideology, and Technology in Political Economy 权力与生产力:政治经济学中的制度、意识形态和技术
Pub Date : 2019-12-14 DOI: 10.2139/ssrn.3503962
Y. Benkler
Market democracies struggle with economic insecurity and growing inequality, presenting new threats to democracy. The revival of “political economy” offers a frame for understanding the relationship between productivity and justice in market societies. It reintegrates power and the social and material context—institutions, ideology, and technology—into our analysis of social relations of production, or how we make and distribute what we need and want to have. Organizations and individuals, alone and in networks, struggle over how much of a society’s production happens in a market sphere, how much happens in nonmarket relations, and how embedded those aspects that do occur in markets are in social relations of mutual obligation and solidarism. These struggles at the micro, meso, and macro levels involve efforts to shape institutions, ideology, and technology in ways that trade off productivity and power, both in the short and long term, including through the production and exploitation of atavistic status-hierarchies, primarily race, gender, and immigration. The outcome of this struggle shapes the divergent paths that diverse market societies take, from oligarchic to egalitarian, and their stability as pluralistic democracies.
市场民主国家与经济不安全和日益加剧的不平等作斗争,这对民主构成了新的威胁。“政治经济学”的复兴为理解市场社会中生产力与正义之间的关系提供了一个框架。它将权力、社会和物质环境——制度、意识形态和技术——重新整合到我们对社会生产关系的分析中,或者我们如何制造和分配我们需要和想要拥有的东西。组织和个人,无论是单独还是在网络中,都在为社会生产中有多少发生在市场领域,有多少发生在非市场关系中,以及市场中发生的那些方面如何嵌入相互义务和团结的社会关系中而斗争。这些在微观、中观和宏观层面上的斗争包括努力塑造制度、意识形态和技术,以在短期和长期内权衡生产力和权力的方式,包括通过生产和利用返祖的地位等级,主要是种族、性别和移民。这场斗争的结果塑造了不同市场社会所走的不同道路,从寡头政治到平等主义,以及它们作为多元民主国家的稳定性。
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引用次数: 1
期刊
Microeconomics: Production
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