Non-linear adjustments on the excess sensitivity of consumption with liquidity constraints

This article investigates the role of domestic credit markets in explaining the excess sensitivity of private consumption to disposable income using heterogeneous panel data of 19 OECD countries over the last two decades. We find that the degree of the excess sensitivity has decreased as the liquidity constraints of households have been alleviated: the estimated time-varying coefficients for the marginal propensity to consume vary between 0.16 for the countries with low liquidity constraints and 0.38 for those with high liquidity constraints. We also provide evidence that the excess sensitivity has been more prominent after the global financial crisis in some advanced countries, such as Japan, Spain, and the United States, where sharp deleveraging of households has been ongoing.     

The impact of labour unions on external auditor selection and audit scope: evidence from the Korean market

We examine whether labour unions influence external auditor selection and audit scope. As a major user group of financial information, labour unions likely demand financial information of high quality and thus high-quality audits. As a union’s request for wage increases is likely strong when a firm is performing well, management facing wage negotiations with the labour union has incentives to manipulate earnings downward and may therefore prefer auditors who allow more discretion. Using union data unique to Korea during 2005–2008, we find that firms with a stronger labour union tend to choose higher-quality auditors (i.e. Big N or industry specialist auditors). We also find that unionization is negatively (positively) associated with positive (negative) abnormal audit fees and audit hours, and the effects are more pronounced when the union is stronger and more active. Given that departures from normal audit fees and audit hours in either direction arguably impair audit quality, this finding is consistent with our prediction of unions’ demand for high-quality audits. Overall, our findings suggest that labour unions play an important role in determining audit quality.     

Understanding college students' opinions on a smoking policy

Because of the negative aspects of smoking, the US National Center on Addiction and Substance Abuse has recommended that university campuses should be smoke free. The purpose of this research was to learn students' opinions about the effectiveness of a smoking policy on campus. The policy simply stated there should be no smoking within 30 feet of a building. However, no areas were designated as smoking areas. Using phenomenological inquiry, the authors observed and interviewed both smoking and non‐smoking students. Findings suggest that the existing smoking policy was weak and often ignored. Students felt the purpose of the smoking policy should be clearly stated because they were not sure if the policy was intended to make smokers quit or prevent them from smoking in front of doors. This study demonstrates the utility of careful observation as a prelude to the design and implementation of qualitative data collection methods. The results indicate observation is a valuable part of a qualitative research strategy.     

A study on the relationship between technology diffusion and new product diffusion

This study investigates the relationship between “technology diffusion” and “new product diffusion”. We define “technology diffusion” as a knowledge spillover process, which is represented by patent citation, and “new product diffusion” as the spread of a new product that has been developed by the application of patented technology. To investigate the relationship between the two types of diffusion, we use patent citation data of code division multiple access (CDMA) technology and market sales data of mobile phones in South Korea for the analysis. The results show that the diffusion of technology through patent citation could be successfully explained by empirical analysis, for which the Bass diffusion model was used. Moreover, we can find out if technology diffusion can be the leading indicator of a new product's diffusion before its launching; in other words, before the commercialization of the patent.     

Is the ‘Linkage Principle’ Valid? Evidence from the Field

We present field evidence concerning experienced bidders that supports the linkage principle—specifically, the prediction that in affiliated‐values auction environments the expected revenues generated at open‐outcry, ascending‐bid auctions are higher than those under auction formats that reveal less information to participants. Using field data from a large seller of automobiles who experimented with different selling formats, we have found that average revenues were significantly higher under an English auction than under a dynamic Internet auction format that revealed less information to bidders.     

Bounded rationality,neural network and folk theorem in repeated games with discounting

Summary The perfect folk theorem (Fudenberg and Maskin [1986]) need not rely on excessively complex strategies. We recover the perfect folk theorem for two person repeated games with discounting through neural networks (Hopfield [1982]) that have finitely many associative units. For any individually rational payoff vector, we need neural networks with at most 7 associative units, each of which can handle only elementary calculations such as maximum, minimum or threshold operation. The uniform upper bound of the complexity of equilibrium strategies differentiates this paer from Ben-Porath and Peleg [1987] in which we need to admit ever more complex strategies in order to expand the set of equilibrium outcomes.I would like to thank Hao Li and John Curran for excellent research assistance. Financial support from National Science Foundation (SES-9223483), Sloan Foundation and the Division of Social Sciences at the University of Chicago is gratefully acknowledged.     

The anatomy of the Korean general trading company

The historical development of Japanese trading companies is reviewed. The concept of “trading company” is developed along three dimensions: product diversification, area diversification, and functional diversification. The seven year history of Korean General Trading Companies is analyzed with regard to their historical background, modus operandi, and current problems. The analysis reveals that most of the Korean GTCs, in spite of their impressive performance in terms of trade volume, have experienced severe deterioration of profitability. Finally, the paper states the change of the Korean Government's policy on the GTCs and contemplates its implication for GTCs' future direction within the context of the definition of trading company.     

Competing risk model for predicting stabilization period of university spin-off ventures

University spin-offs (USOs) are considered as a means of value creation derived from academic research. However, due to financial and managerial constraints, many USOs find it difficult to maintain their business and achieve stabilization. In this study, we investigate the factors affecting the time taken by USOs to reach their break-even point or to secure initial investment from venture capitals, whichever comes earlier. We specifically examine the effect of knowledge diversity, experiential knowledge, intellectual property, and the communication capacity of the USO founders on the time taken to reach stabilization. A competing risk model is applied to the survey data of USO founders in Korea. According to our findings, knowledge diversity, experiential knowledge, and communication capacity are significantly related to the time taken to reach the break-even point. Knowledge diversity, intellectual property, and communication capacity, on the other hand, are associated with the time taken to receive initial investment from venture capitals. Our study can contribute toward deriving strategies for USOs to increase their stabilization speed.     

A study on the influence of eWOM using content analysis: how do comments on value for money,product sophistication and experiential feeling affect our choices?

The influence of electronic word of mouth (eWOM) has been heavily investigated in relation to online ratings. However, only a few studies examined the content of eWOM. From the perspective of the consideration sets model, consumers formulate an awareness set, a consideration set and a choice set before making a purchase. We argue that the formulation of these sets is influenced by eWOM based on its volume, valance and content relating to product attributes such as value for money, product sophistication and experiential feeling. In this study, the content of posts relating to Shure professional earphones in the online forum Mingo (www.mingo-hmw.com/forum) was captured and annotated. During the data collection period, Mingo was the sole online forum relating to professional earphones. Without much interference from other online forums, the circumstances of this study closely approximate a laboratory setting. In addition, we collected the actual sales, marketing costs, fault rates and number of retail stores selling the Shure professional earphones for 126 weeks. Our findings show that the weekly volume of posts, their relative number of positive (negative) comments, especially regarding value for money and sound quality, and those posts from the earlier week impinged strongly on weekly sales of Shure products. From the regression models, the explained variance in sales jumps from 0.236 to 0.732 due to the influence of eWOM.     

Do Borrowing Constraints Change U.S. Homeownership Rates?

This study has two main objectives. First, we estimate various alternative specifications of the tenure choice model with borrowing constraint variables, originally put forth by Linneman and Wachter, using a more recent sample of the Survey of Consumer Finance. Second, we simulate effects of policy changes governing constraints and changes in mortgage interest rates, both on households' owning decisions and on the aggregate homeownership rate. While the impact of constraints has been demonstrated in previous studies, our research provides the first microsimulation estimates of the impact for aggregate homeownership rates for the entire U.S. population.