Is a Policy of Free Movement of Workers Sustainable?

In this paper, we study the costs and benefits of the adoption of a policy of free movement of workers. For countries to agree on uncontrolled movements of workers, short‐run costs must be outweighed by the long‐term benefits of better labor‐market flexibility and income smoothing. We show that such a policy is less likely to be adopted when workers are more impatient and less risk‐averse, when production technologies display stronger decreasing returns, and when countries trade a significant share of their products.     

Labor Unemployment Concern and Corporate Discretionary Disclosure

We investigate how firms strategically vary their disclosure policies in response to labor unemployment concern. Using changes in state unemployment insurance laws as exogenous variations of labor unemployment concern, we show that firms provide more bad news forecasts when unemployment concern is low. This relation is stronger when firms are financially constrained, when CEOs and CFOs have higher equity incentives, and when workers are likely to be affected more by unemployment. Our findings are not driven by earnings management reversal or underlying performance changes, and are robust to a battery of identification tests. Finally, we find a similar effect of unemployment concern on disclosure using the tone of 10‐K and 10‐Q filings as an alternative proxy for corporate disclosure. Overall, our findings suggest that labor unemployment concern is an important consideration for corporate discretionary disclosure.     

The effects of the raising-the-official-pension-age policy in an overlapping generations economy

This paper studies how economic variables are affected by raising the official pension age. Although it is said that such a policy increases output, this paper shows that such a statement is not necessarily true. Moreover, the paper finds that the social security benefit can decrease, which implies that it might be impossible to sustain the same level of benefit only by such a policy.     

Influence Of Over‐ And Underconfidence On A Marriage Market*

This paper examines misconfidence (over‐ or underconfidence) and marriage proposal strategies in a two‐sided search model with non‐transferable utility. Single agents are vertically heterogeneous—there exists a ranking of marital charm (types). It is shown that there are two externalities to over‐ or underconfident behaviour: someone's over‐ or underconfidence affects: (i) the duration of search for others who directly meet over‐ or underconfident agents; and (ii) the marriage decision of others who directly or indirectly meet over‐ or underconfident agents. Furthermore, these externalities prevent the lowest‐type agents from marrying in an equilibrium.     

Tracking Can Be More Equitable Than Mixing

Parents and policy‐makers often wonder whether and how the choice of a tracked or mixed educational system affects the equality of opportunity. I answer this question by analyzing the influence of peers on future educational results. I define an equal opportunity policy as one that maximizes the average lifetime income of the worst‐off type of individuals in society (i.e., students from disadvantaged backgrounds). I find that tracking maximizes average lifetime income if the opportunity cost of college attendance is sufficiently high.     

Field Experiment Tests for Discrimination against Hispanics in the U.S. Rental Housing Market

This article tests for discrimination against Hispanics in the U.S. rental housing market using e‐mail correspondence with landlords advertising units online. We divide Hispanics into two groups: those that appear assimilated into American culture and recent immigrants. We find little difference in the treatment of assimilated Hispanics and whites; however, Hispanics we portray as recent immigrants receive less favorable treatment with margins of net discrimination as large as 6.89% of landlords. We also find discrimination varies significantly at the region level and by the ethnic composition of neighborhoods.     

How Productive Is Workplace Health and Safety?

In this paper, we investigate the causal impact of workplace health and safety practices on firm performance, using Danish longitudinal matched employer–employee data merged with unique cross‐sectional representative firm survey data on work environment conditions. We estimate standard production functions, augmented with workplace environment indicators, addressing both time‐invariant and time‐varying potentially relevant unobservables in the production process. We find positive and large productivity effects of improved physical dimensions of the health and safety environment, specifically, “internal climate” and “monotonous repetitive work”.     

基于MIDP2.0的坦克大战手机游戏的设计

随着无线网络技术的不断发展,手机及其他无线设备的普及将成为一种趋势。由于的手机的携带方便,手机游戏又具有娱乐的功能,和J2ME技术的跨平台特性,使得越来越多的国内外厂商开始开发基于J2ME平台的无线应用服务。文章着眼于J2ME技术在手机游戏开发上的应用,在结合实际的开发经验与一些MIDP2.0新技术的基础上,讲述一款自主研发的基于MIDP2.0的坦克大战手机游戏设计。     

Relationship regarding the demand for labor between domestic temporary and foreign workers: Korean case

With the progress of globalization, South Korea, one of the emerging industrial countries, has recently witnessed a sharp increase in the number of enterprises that employ foreigners. However, there are only a limited number of studies on the influence that such an increase has had on the labor market in the Republic of Korea. Thus, using ‘Workplace Panel Survey’ data surveyed by the Korea Labor Institute (KLI), this paper examines the relationship concerning the labor demand of an establishment between domestic temporary and foreign workers. Analysis using a bivariate Tobit model shows that a typical Korean firm attempts to employ domestic temporary and foreign workers simultaneously. Further, the empirical analysis found that any establishment that is relatively newly established and has difficulty in recruiting domestic workers hires foreign workers, but there is no evidence that establishments hire foreign workers rather than domestic temporary workers to save on the production cost.     

State wage-payment laws, the Pension Protection Act of 2006, and 401(k) saving behavior

I show empirically that state wage-payment laws, which forbid deductions from wages and salaries without the written permission of the employee, constituted a binding constraint on firms’ choices to adopt automatic enrollment in 401(k) plans prior to 2006.