A question of significant interest in female reproductive aging is to identify bleeding criteria for the menopausal transition. Although various bleeding criteria, or markers, have been proposed for the menopausal transition, their validity has not been adequately examined. The Tremin Trust data...

Using data from the United Sates National Longitudinal Survey of Youth (NLSY79) and following a two-stage method, the current study estimates wage, schooling and happiness equations simultaneously and demonstrates that happiness affects the worker's wage not only directly, but also indirectly...

Total Factor Productivity (TFP)is often used on the macro-economic level as an indicator of changes in efficiency of a country. In many transition economies TFP is seen to have been negative the last decade of the plan economy and starts increasing and become positive after a (quite a) few years...