This paper presents the development and evaluation of i Series BIA (bioelectrical impedance analysis) device (models i20, i25, i30, i35, i50, i55), by MEDIANA Co., Ltd. The utilizes a tetra-polar electrode method incorporating 8-point electrodes to improve accuracy reliability body composition analysis. employs multi-frequency segmental measurement with wide range frequencies from 1 kHz 1000 kH...

This paper investigates the Becker-Woessmann (2009) argument that Protestants were more prosperous in nineteenth-century Prussia because they were more literate, a version of the Weber thesis, and shows that it cannot be sustained. The econometric analysis on which Becker and Woessman based their argument is fundamentally flawed, because their instrumental variable does not satisfy the exclusio...

The literature on school choice assumes that families can submit a preference list over all the schools they want to be assigned to. However, in many real-life instances families are only allowed to submit a list containing a limited number of schools. Subjects’ incentives are drastically affected, as more individuals manipulate their preferentes. Including a safety school in the constrained li...

Vocational education in high schools has frequently been stigmatized as an anachronistic, dead-end path for students. We use data from the National Education Longitudinal Survey of 1988 to examine claims that students on a vocational track would benefit from a more academically rigorous education. Clearly, selection bias confounds attempts to untangle the effects of academic tracking on income ...

The literature has not sufficiently engaged the emergence and expansion of the phenomenon of Slave export. This article contributes to the existing stream by examining the role of human capital or intelligence on slave exports. We postulate and justify a reasonable hypothesis that countries which were endowed with higher human capital levels were more likely to experience lower levels of slave ...

The size of the intrahousehold externality created when a literate household member provides literacy services to illiterate members is estimated in this paper, using a model of children’s heightfor-age in Papua New Guinea. This externality appears to be large. These results support the use of a new measure of literacy, developed by Basu and Foster (1998) to take account of the gains when illit...

Consistent with the current emphasis on performance-based accountability in K-12 education, several states and a few local districts have introduced school-based incentive programs. This paper provides one of the few evaluations of the effects of such programs on student outcomes. Using a panel data set for schools in large Texas cities, it measures the gains in student performance in Dallas re...

It is well known that the widely-used Boston mechanism for allocating students to schools is not strategy-proof. An observation shows that relaxing the solution concept to dominance solvability could allow the Boston mechanism to achieve a desirable outcome. I define the acyclic priority structure of schools and find that the Boston mechanism is dominancesolvable if and only if the priority str...

Job Market Signaling and Employer Learning This paper extends the job market signaling model of Spence (1973) by allowing firms to learn the ability of their employees over time. Contrary to the model without employer learning, we find that the Intuitive Criterion does not always select a unique separating equilibrium. When the Intuitive Criterion bites and information is purely asymmetric, the...

The budgetary implications of an aging population in the OECD are often considered dire. This study argues that this need not be the case provided that older educated workers are more innovative than their younger counterparts, and that workers with tertiary education stay in the labor force until their 60s. Using a panel of 21 OECD countries over the period 1870-2009, this paper estimates the ...