Understanding the Labour Market for Older Workers: A Survey

The paper asks why retirement can be so abrupt in countries such as France (½% of the workforce over 65), yet staged in Japan (8% over 65). We find part of the answer in tax laws that prevent people working and receiving a pension, and make little allowance for fair pension increases if retirement is deferred. While these laws have begun to change, we find another part of the answer in employment protection laws. These laws coupled with inflexible collectively agreed wages make employers choosy about hiring the old. The advent of "age discrimination" law reinforces employment protection and may well reduce older workers' hiring opportunities especially where wages are rigid.mandatory retirement, deferred pay, age discrimination, older workers

Job Satisfaction and the Labor Market Institutions in Urban China

The determinants of worker job satisfaction are estimated using a representative survey of three major cities in China. Legally segregated migrants, floaters, earn significantly less than otherwise equivalent non-migrants but routinely report greater job satisfaction, a finding not previously reported. We confirm a positive role for membership in the communist party but find that it exists only for non-migrants suggesting a club good aspect to membership. In contrast to earlier studies, many controls mirror those found in western democracies including the "paradox of the contented female worker."job satisfaction, internal migrants, party membership, China

Effects of spaceflight on the proliferation of jejunal mucosal cells

The purpose of this project was to test the hypothesis that the generalized, whole body decrease in synthetic activity due to microgravity conditions encountered during spaceflight would be demonstrable in cells and tissues characterized by a rapid rate of turnover. Jejunal mucosal cells were chosen as a model since these cells are among the most rapidly proliferating in the body. Accordingly, the percentage of mitotic cells present in the crypts of Lieberkuhn in each of 5 rats flown on the COSMOS 2044 mission were compared to the percentage of mitotic cells present in the crypts in rats included in each of 3 ground control groups (i.e., vivarium, synchronous and caudal-elevated). No significant difference (p greater than .05) was detected in mitotic indices between the flight and vivarium group. Although the ability of jejunal mucosal cells to divide by mitosis was not impaired in flight group, there was, however, a reduction in the length of villi and depth of crypts. The concommitant reduction in villus length and crypth depth in the flight group probably reflects changes in connective tissue components within the core of villi

Separate processing of texture and form in the ventral stream : evidence from fMRI and visual agnosia.

Real-life visual object recognition requires the processing of more than just geometric (shape, size, and orientation) properties. Surface properties such as color and texture are equally important, particularly for providing information about the material properties of objects. Recent neuroimaging research suggests that geometric and surface properties are dealt with separately, within the lateral occipital cortex (LOC) and the collateral sulcus (CoS), respectively. Here we compared objects that either differed in aspect ratio or in surface texture only, keeping all other visual properties constant. Results on brain-intact participants confirmed that surface texture activates an area in the posterior CoS, quite distinct from the area activated by shape within LOC. We also tested two patients with visual object agnosia, one of whom (DF) performed well on the texture task but at chance on the shape task, while the other (MS) showed the converse pattern. This behavioral double dissociation was matched by a parallel neuroimaging dissociation, with activation in CoS but not LOC in patient DF, and activation in LOC but not CoS in patient MS. These data provide presumptive evidence that the areas respectively activated by shape and texture play a causally necessary role in the perceptual discrimination of these features