我国上市公司策略性股票更名:战略转型还是高位套现？

本文发现上市公司进行策略性股票更名后并未出现实质上的转型举措,战略转型并非其更名背后的真实动机。进一步利用“新国九条”出台开展的自然实验,以及对股票减持动机存在差异的国有和非国有上市公司进行比较,我们发现,更名公司具有强烈的内在动机在通过更名抬高股价后减持套现,以获取短期投资收益。本文由此提醒我国资本市场的投资者,不宜把部分上市公司进行的上述策略性股票更名过度解读为上市公司未来进行战略转型的信号。     

Optimal market making in the presence of latency

This paper studies optimal market making for large-tick assets in the presence of latency. We consider a random walk model for the asset price and formulate the market maker's optimization problem using Markov Decision Processes (MDP). We characterize the value of an order and show that it plays the role of one-period reward in the MDP model. Based on this characterization, we provide explicit criteria for assessing the profitability of market making when there is latency. Under our model, we show that a market maker can earn a positive expected profit if there are sufficient uninformed market orders hitting the market maker's limit orders compared with the rate of price jumps, and the trading horizon is sufficiently long. In addition, our theoretical and numerical results suggest that latency can be an additional source of risk and latency impacts negatively the performance of market makers.     

The role of economic and normative signals in international prosocial crowdfunding: An illustration using market orientation and psychological capital

Entrepreneurs in emerging nations are increasingly seeking microloans on international crowdfunding platforms composed of prosocial lenders primarily seeking non-monetary returns. Drawing on signaling theory, we posit that economic signals (as illustrated by market orientation) and normative signals (as illustrated by psychological capital) embedded within borrower narratives will influence funding time. A Computer-Assisted-Text-Analysis (CATA) of 130,964 profiles across 49 countries suggests that borrower cues of customer orientation, competitor orientation, long-term focus, profitability focus, confidence, and optimism are positively associated funding time, while cues of coordination, hope, and resilience are negatively associated with funding time. Prosocial lenders seem less inclined to lend to borrowers that exhibit a desire for economic success or normative expectations for positive outcomes in the future, while they seem to lend more rapidly to those exhibiting current hardship or a concern for people. A discussion of these findings and their implications for poverty alleviation concludes the study.     

You’re the Only One,or Simply the Best. Hotels differentiation,competition, agglomeration,and pricing

Drawing on competition, signalling and agglomeration perspectives, we investigate how vertical and horizontal differentiation influence price, and how hotel competition and agglomeration may moderate any such effects. We argue that vertical differentiation should include online reputation to complement category, and that hotel clustering can provide benefits for incumbents. Hypotheses are tested using quantile regression on a sample of 1870 hotels. In order to account for any service dimensions, an index of differentiation is estimated. We found that local competition and agglomeration moderates the relationship between differentiation and pricing. Furthermore, online reputation effects are more intense for low priced hotels. Indeed, when competition is intense, the positive effect of horizontal differentiation is lower for low priced hotels. Similarly, hotel clustering reinforces the impact of category on price, but it reduces the benefits of offering more services.     

The differential and synergistic effects of market orientation and entrepreneurial orientation on hotel ambidexterity

Innovation ambidexterity has surprisingly received limited attention in hospitality research. Using data from 101 Jordanian hotels analyzed with PLS structural equation modeling, this paper reports a double differential effect of two strategic orientations, market orientation (MO) and entrepreneurial orientation (EO), on hotel ambidexterity. On the one hand, EO (MO) has a stronger impact on exploratory (exploitative) than on exploitative (exploratory) innovation. On the other hand, EO has a stronger impact than MO on both innovation forms. Furthermore, the synergy between EO and MO has a positive impact on exploitative and exploratory innovation, both of which in turn enhance hotel performance.     

When can Chinese competitors catch up? Market and capability ladders and their implications for multinationals

Chinese companies have been more successful in catching up with and sometimes surpassing, their global competitors in some industries but not all of them. This holds true for markets in China and international markets. In this article, we show how both the demand and the supply sides of an industry explain these differences, in terms of the existence of market and capability ladders that can help a new competitor climb from the low end, though the middle, and to the top. We then propose several alternative strategies that multinational companies can follow to respond to growing Chinese competition and recommend strategies with the most potential for a particular market and industry.     

Does news travel slowly before a market crash? The role of margin traders

We investigate how investor overconfidence and attention affect market efficiency around the 2015 Chinese stock market crash. We find that the price delay before the crash is about twice the price delay after the crash. Investors become more sensitive to market movements after the crash. Price delays are larger on market down-days than on up-days before the crash, but the differences are insignificant between up- and down-days after the crash, indicating that negative information travels slowly only when investors are overconfident. Margin traders follow market trends and intensify the pyramiding and de-pyramiding effects caused by market sentiment change.     

Pro‐Consumer Price Ceilings under Regulatory Uncertainty*

We examine optimal price ceilings when the regulator is uncertain about demand and maximizes expected consumer surplus. With perfect competition, if regulatory uncertainty is large enough, then softer intervention is called for, with the price ceiling set at a relatively high level compared with a full information scenario. In an imperfectly competitive setting where symmetric firms compete in supply functions, with large enough uncertainty, the optimal ceiling increases with the degree of competition, so greater competitive pressure justifies less restrictive regulation. Under perfect competition, we also determine a cut‐off level of rationing efficiency below which a price ceiling should not be used.     

技术竞争对企业专利许可行为的影响

知识经济时代，知识产权的重要性愈加凸显。基于海量的中国企业专利许可数据，就多种竞争情境对企业对外许可行为的影响进行研究。实证分析发现，随着竞争密度增大，技术市场扩张厚度增加，企业倾向于对外许可其技术，但技术提供数量与专利许可率之间存在倒U型关系，中国仍远未达到拐点；许可过程中科研实力起到决定性作用，实力较强的竞争者对许可行为具有显著的抑制作用，反之，则具有促进作用。当被许可人是同行竞争者时，并没有拒绝或者延迟对外许可。另外，在对外许可中，国有企业的竞争反应较弱，私营企业较敏感。最后，结合中国市场情况提出相应对策建议。     

Market development and market efficiency: evidence based on nonlinear panel unit root tests

This study tests the weak form market efficiency of 32 European stock markets. Utilizing monthly data from June 2006 to June 2017, six different, newly developed nonlinear panel root tests were applied in three different groups of European markets: Frontier, Emerging and Developed. The results show that there is a meaningful relationship between different levels of economic development and the weak form market efficiency. Considering the nonlinear structure of the stock market indices, use of linear models might lead to wrong conclusions regarding market efficiency. Using several nonlinear panel root tests, the results of this study shed more light on the true data generating process of the stock market indices and more appropriately model market efficiency.