I document two new facts about job search during the Great Recession: (i) search increased after individuals received (and rejected) job offers; and (ii) search decreased with cumulative failed search. To account for these facts I develop a model of sequential search in which Bayesian job seekers learn about the arrival rate of offers through their experiences looking for work. Endogenously-evo...

here is little information about Korean children's secondhand smoke (SHS) exposure at home. This paper examines the extent and determinants of their SHS exposure at home. A population-based random digit dial telephone survey was conducted in 2002 with 500 adults in Seoul. We analyzed data for 207 adults with children living in the household. Thirty-one percent of respondents reported children' ...

This paper explores whether and to what extent wind discourages sustainable transportation mode choice, which includes riding public transportation, bicycling, and walking. A six month-long field study was carried out at four locations in San Francisco, a city that has been promoting sustainable transportation mode choice but that experiences high wind levels. It involved surveying pedestrians ...

First-year students often become discouraged during introductory biology courses when repeated attempts to understand concepts nevertheless result in poor test scores. This challenge is exacerbated by traditional course structures that impose premature judgments on students' achievements. Repeated testing has been shown to benefit student ability to recognize and recall information, but an effe...

We study the behavior of experimental subjects who have to make a sequence of risky investment decisions in the presence of network externalities. Subjects follow a simple heuristic—investing after positive experiences and reducing their propensity to invest after a failure. This result contrasts with the theoretical findings of Jeitschko and Taylor [Jeitschko, T.D., Taylor, C., 2001. Local dis...

This paper studies the effects of the earnings test on retirement behavior. The earnings tests of most social security systems tax post-retirement earnings at a relatively high level and do not lead to actuarially fair increases in future benefits. This results in discouragement of partial retirement. The paper shows that a reduction in the earnings test's tax rate is likely to increase part-ti...

The development of the power therapies, behavioral medicine, and short term interventions have reported such success even with trauma cases that it is relevant to question the justification for lengthy psychotherapy. Yet some patients with complex mind/body conditions impervious to medical treatment/hypnosis may require extended, multi-modal, integrative therapy. This paper details a single com...

Depression is a very common phenomenon. Most of us have experienced some transitory period when we have felt sad and worried; during studying, sleeping and eating patterns have been disturbed. Depression is the foremost mental health problems round the globe. It is basically a disorder of mood or feeling. When depression is severe, persistent and disabling of everyday physical and social functi...

M1 and M2 macrophage-type responses kill or repair in vivo. The unique ability of macrophages to make these polar opposite type of responses provides primary host protection and maintains tissue homeostasis throughout the animal kingdom. In humans and other higher animals, M1 and M2-type macrophage responses also initiate and direct T cells/adaptive immunity to provide additional protection suc...

Mesenchymal stem cells (MSCs) have rapidly been applied in a broad field of immune-mediated disorders since the first successful clinical use of MSCs for treatment of graft-versus-host disease. Despite the lack of supporting data, expectations that MSCs could potentially treat most inflammatory conditions led to rushed application and development of commercialized products. Today, both pre-clin...