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Selected recent publications in the top management and economics journals

Time Encoding in Languages and Investment Efficiency

( Kim, Jaehyeon | Kim, Yongtae | Zhou, Jian )



Linguistics research shows that languages differ as to how they differentiate future from present events. Economics research finds that when the grammatical structure of a language disassociates the future from the present, speakers of the language also disassociate the future from the present in their behaviors. This study examines how linguistically induced time perception relates to cross-country variation in investment efficiency. We find that underinvestment is less prevalent in countries where there is a weaker time disassociation in the language. The results from both a within-country analysis based on firms headquartered in different regions of Switzerland and an analysis based on the birthplace information of U.S. firms’ chief executive officers confirm the relation between languages and investment efficiency. Collectively, the results suggest that time encoding in languages influences speakers’ cognition and their investment decisions.

Positive feedback in coordination games: Stochastic evolutionary dynamics and the logit choice rule

( Hwang, Sung-Ha | Rey-Bellet, Luc )



We study the problem of stochastic stability for evolutionary dynamics under the logit choice rule. We consider general classes of coordination games, symmetric or asymmetric, with an arbitrary number of strategies, which satisfies the marginal bandwagon property (i.e., there is positive feedback to coordinate). Our main result is that the most likely evolutionary escape paths from a status quo convention consist of a series of identical mistakes. As an application of our result, we show that the Nash bargaining solution arises as the long run convention for the evolutionary Nash demand game under the usual logit choice rule. We also obtain a new bargaining solution if the logit choice rule is combined with intentional idiosyncratic plays. The new bargaining solution is more egalitarian than the Nash bargaining solution, demonstrating that intentionality implies equality under the logit choice model. ⓒ 2021 Elsevier Inc.

The Effect of Monetary Policy on Bank Wholesale Funding

( Choi, Dong Beom | Choi, Hyun-Soo )



We study how monetary policy affects the funding composition of the banking sector. When monetary tightening reduces the supply of retail deposits, banks attempt to substitute wholesale funding for deposit outflows to smooth their lending. Because of financial frictions, banks have varying degrees of access to wholesale funding. Therefore, large banks, or those with greater reliance on wholesale funding, increase their wholesale funding more. Consequently, monetary tightening increases both the reliance on and the concentration of wholesale funding within the banking sector. Our findings also suggest that liquidity requirements could bolster monetary policy transmission through the bank lending channel. Copyright: ⓒ 2020 INFORMS.

The Effect of Trade Secrets Law on Stock Price Synchronicity: Evidence from the Inevitable Disclosure Doctrine

( Kim, Yongtae | Su, Lixin (Nancy) | Wang, Zheng | Wu, Haibin )



We exploit the staggered recognition of the Inevitable Disclosure Doctrine (IDD) by U.S. state courts to examine the effect of trade secret protection on the amount of firm-specific information incorporated in stock prices, as reflected in stock price synchronicity. We find that after certain state courts recognize the IDD, firms headquartered in those states exhibit a significant increase in stock price synchronicity relative to firms in other states. We also find a significant decrease in the disclosure of proprietary information in the firms' 10-K reports. These results suggest that IDD recognition increases the proprietary cost of disclosure and, in response, corporate managers withhold more information. In addition, we find that the increase in stock price synchronicity and the decrease in the disclosure of proprietary information lead to increases in the firm's market share, cost of equity, and market-to-book ratio, suggesting that managers sacrifice capital market benefits for product market gains.

A Model of Brand Architecture Choice: A House of Brands vs. A Branded House

( Yu, Jungju )



Some firms that operate in multiple product markets use the same brand in different markets, whereas others use different brands in different markets. This research investigates in which product markets a firm should use the same or different brands and how this decision depends on the relatedness of product markets. To answer this question, I propose a framework of market relatedness that characterizes the relationships among distinct product markets from the supply side (e.g., shared production technology) and demand side (e.g., correlated customer preferences). This framework is applied to a model of reputation in which a multiproduct firm's product quality is jointly determined by its hidden capability type (i.e., adverse selection) and hidden choice of effort level (i.e., moral hazard) in each product market. Consumers obtain noisy information about the firm by observing its track record, that is, product quality produced in the past. Umbrella branding allows consumers to pool the firm's track record across different product markets and form expectations about the product quality based on market relatedness. The analysis shows that umbrella branding is optimal if supply-side relatedness is high and demand-side relatedness is not too high. However, if the product markets are closely related in both dimensions, then independent branding may be optimal because, as an umbrella brand, the firm faces a temptation to exploit positive information spillover across product markets through its shared brand name. By using different brand names, a firm can credibly commit to investing in all product markets and thereby earn higher profits. Finally, this paper provides implications for an umbrella brand's customer relationship management strategy whether to serve the same or distinct customer segments with its products.

Contact : Joo, Sunhee ( shjoo2006@kaist.ac.kr )

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