Gender Discrimination and Worker Selectivity: A Comparison of the Self-employed and Wage Earners

This study compares the size and nature of the gender earnings differentials for the self-employed and wage earners in Korea, taking into account the workers’ self-selection of each employment type. The two-stage estimates of the earnings equation, corrected for worker selectivity, are used to decompose the gender earnings differentials into productivity-related and discriminatory factors. Our results suggest that the size of the gender earnings gap is larger in the wage sector than in the self-employment sector, but not by large margin, and so is the discrimination effect when not controlled for worker selectivity. With worker selectivity controlled, the discrimination effect is greatly intensified in the wage sector, while it becomes not significant in the self-employment sector. These findings imply that the observed gender earnings gap in the wage sector is largely ascribed to discrimination against women, while the gender earnings gap in the self-employment sector is mostly due to productivity difference that, in part, is caused by worker selectivity.     

Project Management Knowledge and Effects on Construction Project Outcomes: An Empirical Study

This study examines the relationships among the PMBOK® Guide, project performance, customer satisfaction, and project success by assessing the efficacy of management techniques, tools, and skills for implementing infrastructure and building construction. Experienced interviewees from private engineering firms and public agencies were asked to complete a questionnaire, and the responses were analyzed by means of a structural equation model. The analytical results indicate the appropriateness of prioritizing the practice of the PMBOK® Guide in the construction industry. This study contributes to the literature by providing insight into interactions among the PMBOK® Guide and construction project outcomes in engineering practices. Particularly, the “bidder's conference” and “procurement negotiations” are the priority techniques to minimize bidding and legal procurement problems. Moreover, the study recommends the use of “stakeholder analysis,” “communication requirements analysis,” and the “communication methods” to perform effective communication management. Although the conclusions are based on the sample collected in Taiwan, the research findings can be used by project managers and educators to tailor the PMBOK® Guide to their unique needs and to design effective training programs for construction specialists.     

The Rising Supply of College Graduates and Declining Returns for Young Cohort: The Case of Korea

Abstract

This study analysed the effect of an increase in the supply of youth college graduates, in terms of the return on education. The rate of return on education in Korea substantially dropped from 1983 to 1994. Since then, however, the declining trend of the rate of return on education stopped and turned upward. The rate of return has declined especially for college graduates, and such a decline has been most prominent for young cohorts, among college graduates, since 1987. The observed trend of the rate of return appears to be related to the sharp increase of labour supply of college graduates since the mid 1980s.

The elasticity of substitution between education levels and age groups was estimated in this study, using a generalized demand-supply model. The effects of relative supply of college graduates (as a whole and by age) on the relative wages of college graduates by age were analysed under the assumption of constant skill-biased technological change. As it turned out, the relative college graduates’ labour supply of each age group had large bearings upon relative wages of each corresponding group, while the relative labour supply of all college graduates did not. It implies that labour is an imperfect substitute, not only between education levels but also between age groups.

Thus, as youth college graduates’ supply increases, there needs to be a corresponding demand increase for them, to avoid the drop in the wage or employment level for them. Therefore, to tackle with the issues of youth labour market, such as youth unemployment, separate policies targeting the youth group are called for.     

Confucian Controversy over Westernization in China: An Exposition and Criticism

The semiconductor industry in Taiwan has successfully developed over the past 20 years. The development of the industry can be featured by a spiral‐type industrial policy deployment of the state with special emphasis on R&;D and human resource development at public institutes and mobilization and organization of overseas human resources. All in all, the role played by the state has not been market‐intervention but the coordination of various systems functioning in the private sector.     

Patent indicators for macroeconomic growth—the value of patents estimated by export volume

This paper examines the linkage between patenting and export performance for selected countries at the level of technology fields. Some empirical studies show considerable correlation between the patenting behavior of countries and their economic success in international markets. Adding to the existing literature, the aim of this analysis is to assess whether the indicators that are supposed to reflect patent value—such as patent citations or family size—have any explanatory power in estimating the export value of countries by technology fields.     

Amenity values of spatial configurations of forest landscapes over space and time in the Southern Appalachian Highlands

This research analyzes amenity values of spatial configurations of forest landscapes over space and time in the Southern Appalachian Highlands using geographically weighted regression (GWR) in a hedonic housing-price framework with a census-block group (CBG) dataset. Results show that housing-price response to mean forest-patch size and forest-patch density increased substantially between 1990 and 2000 in a few specific areas with economically significant amenity values. The spatial and temporal dynamics of the resulting amenity-value estimates are evaluated for potential use as site-selection indicators for implementation of forest conservation programs.     

Ethical Commitment,Financial Performance,and Valuation: An Empirical Investigation of Korean Companies

A variety of stakeholders including investors, corporate managers, customers, suppliers, employees, researchers, and government policy makers have long been interested in the relationship between the financial performance of a corporation and its commitment to business ethics. As a subject of research, the relations between business ethics and corporate valuation has yet to be thoroughly quantified and investigated. This article is an effort to amend this inadequacy by demonstrating a statistically significant association between ethical commitment and corporate valuation measures. Consistent with anecdotal evidence, we have found a significant association between the ethical commitment of Korean companies and their valuation on the Korean stock market. However, the result reveals that the association between ethical commitment and financial performance is not significantly supported. Tae Hee Choi received Ph.D. from the Ohio State University, Ohio, USA. Presently working as Assistant Professor in accounting at the KDI School of Public Policy and Management. Research interests are business ethics, capital market, financial accounting, managerial accounting, and valuation. Jinchul Jung received Ph.D. from Kent State University, Ohio, USA. Presently working as Assistant Professor of Business Administration Department in the College of Business at Chosun University. Research interests are business ethics, family-supportive program, and organizational commitment.     

Corporate Hedging Policy and Equity Mispricing

We show that firms’ use of derivatives is negatively associated with stock mispricing. This result is consistent with the notion that hedging improves the transparency and predictability of firms’ cash flows resulting in less misvaluation. Furthermore, we show that the negative relationship between mispricing and hedging is particularly strong when market value is below fundamental value, which is consistent with prior evidence that hedging has a positive impact on firm valuation. Finally, we provide evidence that a “spread‐out” hedging policy that entails the use of a variety of derivative contracts can be more effective in reducing mispricing.     

Self‐Reported vs. Market Estimated House Values: Are Homeowners Misinformed or Are They Purposely Misreporting?

Extant research finds significant gaps between a homeowner's self‐reported house value and market estimates, and that the gap is largest for underwater homeowners. Prior studies, however, have largely overlooked the possibility that homeowners’ self‐reported house value may be more accurate due to private information. Previous research has also neglected the possibility that there could be discordance between what homeowners know and what they report as their house value. Using the Panel Study of Income Dynamics, this study examines how the choices of households reveal their knowledge of the true home value. In so doing, we find that that post move housing choices reveal that market estimates are accurate assessments of the housing value. Further, we find evidence that these underwater homeowners are aware of the actual house value, but are reporting them incorrectly. The results show that misreporting underwater homeowners are as likely to be late on their mortgage payments as homeowners that are reporting negative equity. Underwater homeowners’ reluctance to admit their losses accords with the theory of loss aversion.     

Stochastic frontier models with network selectivity

Worker peer-effects and managerial selection have received limited attention in the stochastic frontier analysis literature. We develop a parametric production function model that allows for worker peer-effects in output and worker-level inefficiency that is correlated with a manager’s selection of worker teams. The model is the usual “composed error” specification of the stochastic frontier model, but we allow for managerial selectivity (endogeneity) that works through the worker-level inefficiency term. The new specification captures both worker-level inefficiency and the manager’s ability to efficiently select teams to produce output. As the correlation between the manager’s selection equation and worker inefficiency goes to zero, our parametric model reduces to the normal-exponential stochastic frontier model of Aigner et al. (1977) with peer-effects. A comprehensive application to the NBA is provided.