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Estimating the Costs of Standardization: Evidence from the Movie Industry 估计标准化的成本:来自电影业的证据
Pub Date : 2022-06-29 DOI: 10.2139/ssrn.3523545
El Hadi Caoui
This paper studies the decentralized adoption of a technology standard when network effects are present. If the new standard is incompatible with the current installed base, adoption may be inefficiently delayed. I quantify the magnitude of “excess inertia” in the switch of the movie distribution and exhibition industries from 35mm film to digital. I specify and estimate a dynamic game of digital hardware adoption by theaters and digital movies supply by distributors. Counterfactual simulations establish that excess inertia reduces surplus by 16% relative to the first-best adoption path; network externalities explain 41% of the surplus loss. Targeted adoption subsidies or a mandate on digital distribution help bridge this welfare gap.
本文研究了当网络效应存在时,技术标准的去中心化采用。如果新标准与当前的安装基础不兼容,采用可能会无效地延迟。我量化了电影发行和放映行业从35毫米胶片转向数字胶片的“过度惯性”的程度。我指定并估计了影院采用数字硬件和发行商提供数字电影的动态博弈。反事实模拟表明,相对于第一最佳采用路径,过度惯性使盈余减少16%;网络外部性解释了41%的盈余损失。有针对性的收养补贴或对数字分销的授权有助于弥合这一福利差距。
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引用次数: 4
Does Gender Affect Innovation? Evidence from Female Chief Technology Officers 性别影响创新吗?来自女性首席技术官的证据
Pub Date : 2021-07-17 DOI: 10.2139/ssrn.3888695
Qiang Wu, I. Hasan, Nada Kobeissi, Li Zheng
Abstract In this paper, we examine the impact of female Chief Technology Officers (CTOs) on corporate innovation. We find that firms with female CTOs are more innovative (as captured by both patent counts and patent citations) than firms with male CTOs. This effect is more pronounced for firms with a stronger innovation-supportive culture, firms with female CEOs, and when female CTOs are more powerful. Using mediation analyses, we further validate that female CTOs’ transformational leadership style is a plausible mechanism through which they affect innovation positively.
摘要本文研究了女性首席技术官(CTOs)对企业创新的影响。我们发现,拥有女性首席技术官的公司比拥有男性首席技术官的公司更具创新性(从专利数量和专利引用两方面都可以看出)。这种效应在支持创新文化更强的公司、女性首席执行官的公司以及女性首席技术官更强大的公司中更为明显。通过中介分析,我们进一步验证了女性首席技术官的变革型领导风格是其积极影响创新的可能机制。
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引用次数: 28
To Interfere or Not To Interfere: Information Revelation and Price-Setting Incentives in a Multiagent Learning Environment 干预与不干预:多智能体学习环境中的信息披露与定价激励
Pub Date : 2021-06-08 DOI: 10.2139/ssrn.3864227
J. Birge, Hongfan Chen, N. B. Keskin, Amy R. Ward
We consider a platform in which multiple sellers offer their products for sale over a time horizon of T periods. Each seller sets its own price. The platform collects a fraction of the sales revenue and provides price-setting incentives to the sellers to maximize its own revenue. The demand for each seller's product is a function of all sellers' prices and some customer features. Initially, neither the platform nor the sellers know the demand function, but they can learn about it through sales observations: each seller observes its own sales, whereas the platform observes all sellers' sales as well as the customer feature information. We measure the platform's performance by comparing its expected revenue with the full-information optimal revenue, and design policies that enable the platform to judiciously manage information revelation and price-setting incentives. Perhaps surprisingly, a simple "do-nothing" policy does not always exhibit poor revenue performance and can perform exceptionally well under certain conditions. With a more conservative policy that reveals information to make price-setting incentives more effective, the platform can always protect itself from large revenue losses caused by demand model uncertainty. We develop a strategic-reveal-and-incentivize policy that combines the benefits of the aforementioned policies and thereby achieves asymptotically optimal revenue performance as T grows large.
我们考虑一个平台,在这个平台上,多个卖家在T期的时间范围内提供他们的产品。每个卖家设定自己的价格。该平台收取销售收入的一小部分,并向卖家提供定价激励,以使自己的收入最大化。对每个卖家产品的需求是所有卖家价格和一些顾客特征的函数。最初,平台和卖家都不知道需求函数,但他们可以通过销售观察来了解需求函数:每个卖家观察自己的销售情况,而平台观察所有卖家的销售情况以及客户特征信息。我们通过比较平台的预期收入和全信息最优收入来衡量平台的表现,并设计政策,使平台能够明智地管理信息披露和价格设定激励。也许令人惊讶的是,一个简单的“什么都不做”的政策并不总是表现出糟糕的收入表现,而且在某些条件下可以表现得非常好。通过更保守的信息披露政策,使定价激励更有效,平台总能保护自己免受需求模型不确定性造成的巨额收入损失。我们开发了一种战略披露和激励政策,该政策结合了上述政策的好处,从而在T变大时实现渐近最优的收入绩效。
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引用次数: 4
Innovation Contests With Risk-Averse Participants 与规避风险的参与者进行创新竞赛
Pub Date : 2021-05-01 DOI: 10.2139/ssrn.3837747
Xu Tian
The innovation contest is well organized to provide solutions or ideas for companies. In the existing innovation contest literature, several papers assume that the contestants are risk neutral and show that a single-winner award scheme is optimal. In this paper, we assume that the contestants are risk averse and show that the risk aversion of contestants can explain the popularity of the multiple-winner, convex (unequal) allocation scheme, which generalizes the findings of a prior study and coincides with practical observations. This result also possesses a certain robustness in several cases.
创新大赛组织有序,为企业提供解决方案或创意。在现有的创新竞赛文献中,有几篇论文假设参赛者是风险中立的,并表明单赢家奖励方案是最优的。在本文中,我们假设参赛者是风险厌恶的,并证明了参赛者的风险厌恶可以解释多赢家凸(不平等)分配方案的流行,这推广了先前的研究结果,并与实际观察相吻合。该结果在若干情况下也具有一定的鲁棒性。
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引用次数: 2
Can Deep Reinforcement Learning Improve Inventory Management? Performance on Dual Sourcing, Lost Sales and Multi-Echelon Problems 深度强化学习能改善库存管理吗?双源、销售损失和多梯队问题的绩效分析
Pub Date : 2020-10-06 DOI: 10.2139/ssrn.3302881
Joren Gijsbrechts, R. Boute, J. V. Mieghem, Dennis J. Zhang
Problem definition: Is deep reinforcement learning (DRL) effective at solving inventory problems? Academic/practical relevance: Given that DRL has successfully been applied in computer games and robotics, supply chain researchers and companies are interested in its potential in inventory management. We provide a rigorous performance evaluation of DRL in three classic and intractable inventory problems: lost sales, dual sourcing, and multi-echelon inventory management. Methodology: We model each inventory problem as a Markov decision process and apply and tune the Asynchronous Advantage Actor-Critic (A3C) DRL algorithm for a variety of parameter settings. Results: We demonstrate that the A3C algorithm can match the performance of the state-of-the-art heuristics and other approximate dynamic programming methods. Although the initial tuning was computationally demanding and time demanding, only small changes to the tuning parameters were needed for the other studied problems. Managerial implications: Our study provides evidence that DRL can effectively solve stationary inventory problems. This is especially promising when problem-dependent heuristics are lacking. Yet, generating structural policy insight or designing specialized policies that are (ideally provably) near optimal remains desirable.
问题定义:深度强化学习(DRL)在解决库存问题方面是否有效?学术/实际意义:鉴于DRL已成功地应用于电脑游戏和机器人,供应链研究人员和公司对其在库存管理方面的潜力感兴趣。我们在三个经典和棘手的库存问题:销售损失、双重采购和多级库存管理中提供了严格的DRL绩效评估。方法:我们将每个库存问题建模为马尔可夫决策过程,并针对各种参数设置应用和调整异步优势参与者-评论家(A3C) DRL算法。结果:我们证明了A3C算法可以媲美最先进的启发式和其他近似动态规划方法的性能。尽管初始调优需要大量的计算和时间,但对于其他研究的问题,只需要对调优参数进行微小的更改。管理启示:我们的研究提供了证据,证明DRL可以有效地解决固定库存问题。当缺乏问题依赖启发式时,这尤其有希望。然而,产生结构性政策见解或设计(理想情况下可证明)接近最优的专门政策仍然是可取的。
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引用次数: 46
Rough Heston: The SINC way Rough Heston: SINC的方式
Pub Date : 2020-09-01 DOI: 10.2139/ssrn.3684706
Fabio Baschetti, G. Bormetti, S. Romagnoli, P. Rossi
The goal of this paper is to investigate the method outlined by one of us (PR) in Cherubini et al. (2009) to compute option prices. We named it the SINC approach. While the COS method by Fang and Osterlee (2009) leverages the Fourier-cosine expansion of truncated densities, the SINC approach builds on the Shannon Sampling Theorem revisited for functions with bounded support. We provide several important results which were missing in the early derivation: i) a rigorous proof of the converge of the SINC formula to the correct option price when the support growths and the number of Fourier frequencies increases; ii) ready to implement formulas for put, Cash-or-Nothing, and Asset-or-Nothing options; iii) a systematic comparison with the COS formula in several settings; iv) a numerical challenge against alternative Fast Fourier specifications, such as Carr and Madan (1999) and Lewis (2000); v) an extensive pricing exercise under the rough Heston model of Jaisson and Rosenbaum (2015); vi) formulas to evaluate numerically the moments of a truncated density. The advantages of the SINC approach are numerous. When compared to benchmark methodologies, SINC provides the most accurate and fast pricing computation. The method naturally lends itself to price all options in a smile concurrently by means of Fast Fourier techniques, boosting fast calibration. Pricing requires to resort only to odd moments in the Fourier space.
本文的目的是研究我们(PR)在Cherubini等人(2009)中概述的计算期权价格的方法。我们称之为SINC方法。Fang和Osterlee(2009)的COS方法利用截断密度的傅立叶-余弦展开,而SINC方法建立在Shannon抽样定理的基础上,对有界支持的函数进行了重新审视。我们提供了在早期推导中缺少的几个重要结果:i)严格证明了当支持度增加和傅立叶频率数量增加时,SINC公式收敛于正确的期权价格;ii)准备实施看跌期权、现金或无现金期权和资产或无资产期权的公式;iii)在若干情况下与COS公式进行系统比较;iv)对替代快速傅里叶规范的数值挑战,如Carr和Madan(1999)和Lewis (2000);v)在Jaisson和Rosenbaum(2015)的粗略赫斯顿模型下进行广泛的定价;Vi)计算截断密度矩的数值公式。SINC方法的优点很多。与基准方法相比,SINC提供了最准确、最快速的定价计算。通过快速傅立叶技术,该方法自然可以同时为微笑中的所有选项定价,从而提高快速校准。定价只需要利用傅里叶空间中的奇矩。
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引用次数: 2
The Real Effects of Modern Information Technologies: Evidence from the EDGAR Implementation 现代信息技术的真正影响:来自EDGAR实施的证据
Pub Date : 2020-07-01 DOI: 10.2139/ssrn.3644613
Itay Goldstein, Shijie Yang, Luo Zuo
Modern information technologies have greatly facilitated timely dissemination of information to a broad base of investors at low costs. To examine their effects on the real economy, we exploit the staggered implementation of the EDGAR system from 1993 to 1996 as a shock to information dissemination technologies. We find that the EDGAR implementation leads to an increase in the level of corporate investment but a decrease in the investment-to-price sensitivity. We provide evidence that improved equity financing and reduced managerial learning from prices are the underlying mechanisms that explain these real effects, respectively. In addition, we show that the EDGAR implementation leads to an improvement in performance in value firms but a decline in performance in high-growth firms where learning from the market is particularly important.
现代信息技术大大促进了以低成本及时向广大投资者传播信息。为了检验它们对实体经济的影响,我们利用1993年至1996年EDGAR系统的交错实施作为对信息传播技术的冲击。我们发现EDGAR的实施导致企业投资水平的提高,但投资对价格的敏感性降低。我们提供的证据表明,股权融资的改善和管理层从价格中学习的减少分别是解释这些实际影响的潜在机制。此外,我们表明EDGAR的实施导致价值型公司的绩效改善,但在从市场学习特别重要的高增长公司中,绩效下降。
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引用次数: 39
Brand Value Building and Management on B2B Markets B2B市场的品牌价值构建与管理
Pub Date : 2020-04-30 DOI: 10.21303/2613-5647.2020.001300
J. Majerová, A. Kubjatkova
The brand value building and management marketing strategy forms the immanent part of an optimally conceived competitive strategy of companies, regardless of whether they operate in consumer (B2C) or business-oriented (B2B) markets. In practice, however, there is often an interpretive confusion of management patterns without respecting the specifics of these two elementary kinds of markets. This fact subsequently results in interpretive malformations. These negatively affect the erudition of marketing managers' decisions and create the misconception that the strategies of building and managing brand value, formulated so far, are not effective in the context of B2B markets, as their implementation does not lead to the desired results. The aim of the paper is to identify the main differences between building and managing brand value in the B2B and B2C markets in the context of the needs of a successful modern company. From a methodological point of view, in addition to the basic methods of formal logic, such as analysis, synthesis, induction and deduction, mainly the method of scientific excerption is applied. This is precisely the main pillar of the realized literary review, devoted to the researched issue. Based on the above mentioned methodological apparatus and its effective implementation, the output of the article is a basic definition of building and managing the value of a brand in B2B markets, respecting their specifics, determining the need to modify the original functional consumer-oriented branding constructs.
无论是在消费者(B2C)市场还是面向企业(B2B)市场,品牌价值建设和管理营销战略都是企业最佳竞争战略的内在组成部分。然而,在实践中,在不尊重这两种基本市场的特点的情况下,往往会对管理模式产生解释上的混淆。这一事实随后导致解释上的畸形。这些负面影响了营销经理决策的广博性,并造成了一种误解,即迄今为止制定的建立和管理品牌价值的战略在B2B市场的背景下是无效的,因为它们的实施并没有导致预期的结果。本文的目的是在一个成功的现代公司的需求背景下,确定在B2B和B2C市场中建立和管理品牌价值之间的主要差异。从方法论的角度看,除了形式逻辑的分析、综合、归纳、演绎等基本方法外,主要采用科学摘录的方法。这正是实现文学评论的主要支柱,致力于研究问题。基于上述方法设备及其有效实施,本文的输出是在B2B市场中建立和管理品牌价值的基本定义,尊重其具体情况,确定需要修改原始的功能性消费者导向的品牌结构。
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引用次数: 0
Dynamic Human-Robot Collaborative Picking Strategies 动态人机协作采摘策略
Pub Date : 2020-04-25 DOI: 10.2139/ssrn.3585396
K. Azadeh, D. Roy, M. B. M. de Koster
In the last decades, many retailers have started to combine traditional store deliveries with fulfilment of online sales to consumers, from omnichannel warehouses, which are increasingly automated. One popular way of warehouse automation is with Autonomous Mobile Robots (AMRs), that collaborate with human pickers to efficiently pick the orders by reducing the pickers' unproductive walking time. Picker travel time can be reduced even more by zoning the storage system, where robots take care of the travel between these zones. However, the optimal zoning strategy for these robotic systems is not clear: few zones are particularly good for the large store orders, while many zones are particularly good for the small online orders. We therefore study the effect of dynamic zoning strategies, i.e. dynamic switching between a No Zoning (NZ) strategy and a Progressive Zoning (PZ) strategy. We solve the problem in two stages. First, we develop queuing network models to obtain load-dependent pick throughput rates corresponding to a given number of AMRs and a picking strategy with a fixed number of zones. Then, we develop a Markov-decision model to investigate how higher pick performance can be achieved by dynamically switching between these pick strategies. Using data from an omnichannel warehouse that processes various order sizes, we show that a Dynamic Switching (DS) policy can lower operational cost by up to 7 percent. However, these cost savings decrease as the number of robots per picker increases.
在过去的几十年里,许多零售商已经开始将传统的商店配送与从全渠道仓库向消费者提供的在线销售服务结合起来,这些仓库的自动化程度越来越高。一种流行的仓库自动化方式是使用自主移动机器人(amr),它与人类拾取员合作,通过减少拾取员的非生产性步行时间来有效地拾取订单。通过分区存储系统,机器人负责这些区域之间的运输,可以进一步减少拾取器的运输时间。然而,这些机器人系统的最佳分区策略并不明确:很少有区域特别适合大型商店订单,而许多区域特别适合小型在线订单。因此,我们研究了动态分区策略的效果,即在无分区(NZ)策略和渐进分区(PZ)策略之间的动态切换。我们分两个阶段解决这个问题。首先,我们建立了排队网络模型,以获得与给定数量的amr相对应的负载相关的拾取吞吐量和具有固定数量区域的拾取策略。然后,我们开发了一个马尔可夫决策模型来研究如何通过在这些选择策略之间动态切换来获得更高的选择性能。使用来自处理各种订单大小的全渠道仓库的数据,我们展示了动态切换(DS)策略可以将运营成本降低多达7%。然而,随着每个拾取器的机器人数量的增加,这些成本节约会减少。
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引用次数: 14
Impact of E-Business on Business Association 电子商务对商业协会的影响
Pub Date : 2019-12-31 DOI: 10.31033/ijemr.9.6.2
Sandip U. Deshmukh
The said research paper involves a study of the impact of Electronic Commerce on Business. The research study has highlighted the Management Information Systems, Finance and Accounting, Marketing and Computer Sciences of E-Commerce on Business. E-commerce is a way of conducting business over the Internet. Though it is a relatively new concept, it has the potential to alter the traditional form of economic activities. Already it affects such large sectors as communications, finance and retail trade and holds promises in areas such as education, health and government. The largest effects may be associated not with many of the impacts that command the most attention but with less visible, but potentially more pervasive, effects on routine business activities. The integration of Electronic Commerce and Business will bring a renaissance in marketing function. As it present opportunities to get close to the customer to bring the customer inside the company, to explore new product ideas and pretest them against real customers.
上述研究论文涉及电子商务对商业的影响的研究。该研究重点介绍了电子商务的管理信息系统、财务及会计、市场营销和计算机科学。电子商务是一种通过互联网开展业务的方式。虽然这是一个相对较新的概念,但它有可能改变传统的经济活动形式。它已经影响到通信、金融和零售贸易等大型行业,并在教育、卫生和政府等领域带来了希望。最大的影响可能与许多引起最多关注的影响无关,而是与日常商业活动中不太明显但可能更普遍的影响有关。电子商务与商务的融合将带来营销功能的复兴。因为它提供了接近客户的机会,将客户带入公司,探索新产品的想法,并对真正的客户进行预测试。
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引用次数: 2
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Innovation & Management Science eJournal
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