Alzheimer’s disease is a degenerative disease found in many aging adults. The presence of amyloid precursor protein (APP) is an early indicator of the onset of Alzheimer’s, primarily in memory-related brain regions like the hippocampus. Hormones accompanying pregnancy, such as estrogen, may provide the female brain with protection against neurodegeneration and deposits of APP. The present study...

Reformists argue that Japanese firms maintain inefficiently few outside directors, while theory suggests market competition should drive firms toward their firm-specifically optimal board structure (if any). The debate suggests three testable hypotheses. First, perhaps board composition does not matter. If so, then firm performance will show no relation to board structure, but outsiders will be...