Enhancing firm performance through intra-group managerial experience: Evidence from group-affiliated firms in Korea

Asia Pacific Journal of Management - Although business groups often benefit from tangible and intangible resource sharing across member firms, little is known about whether and how sharing...     

What drives racial segregation? New evidence using Census microdata

Using restricted Census microdata that link households to the Census block in which they live, this paper re-examines the question of whether racial differences in sociodemographic characteristics can explain observed levels of racial segregation. We develop a simple measurement framework designed to make use of the rich joint distribution of individual and neighborhood characteristics that these data provide, analyzing segregation patterns in the San Francisco Bay Area. The results indicate that racial differences in the collective set of characteristics we consider do have the potential to explain a considerable amount of the observed segregation, although more so for Asians and especially Hispanics than whites and blacks. Different sociodemographic factors emerge as potentially important for each race.     

House price convergence: Evidence from US state and metropolitan area panels

We study house price convergence in panels of US states and metropolitan areas. Our analysis is centered on three issues. First, we test whether the US house prices are converging over time using log t convergence test by Phillips and Sul (2007). The test results suggest that there is little evidence of overall convergence. The second issue is to investigate the possibility of a convergence club where the cross-sectional dispersion of house prices of the club members decreases over time. We utilize a clustering algorithm and the results support that there is strong evidence of multiple convergence clubs. Finally, we examine the general characteristics of the various convergence and divergence subgroups as well as some important driving forces of convergence clubs. We find that housing supply regulation together with climate are important determinants of convergence club membership.     

Economic design of one-sided screening procedures based on a correlated variable with all parameters unknown

Summary Economic design of one-sided screening procedures for improving outgoing product quality based on a screening variable is considered for the case with all parameters unknown. It is assumed that the performance and screening variables are jointly normally distributed and that costs are incurred by screening inspection, acceptance of an imperfect item, and disposition of a rejected one. A method for finding optimal cutoff value based on the predictive distribution is presented.     

On marginal estimation in a semiparametric model for longitudinal data with time-independent covariates

We consider M-estimators for a class of semiparametric mixed-effect models without time-dependent covariates and show that the simple marginal estimation method is generally better than the same M-estimator applied to the de-correlated response based on a known or estimated covariance matrix for each subject.