The purpose of this paper is to review the empirical study of the long-run relationship between unemployment rates and labor force participation rates in the Sweden, United State and urban China. In Sweden, Osterholm (2010) investigated whether unemployment and labor force participation is an issue that has important implications for theory, empirical modeling & policy in labour and macroeconomics. On the other hand Liu (2011) analyzed pattern and trends in labor force participation rate & employment in urban for the past few decade in China. Emerson (2011) did the study for United States on unemployment and labour force participation. While Emerson (2011) and Osterholm (2010) results leads us to question the empirical relevance of the unemployment invariance hypothesis for the United States and Sweden, Liu (2011) provided comprehensive and more up-to-date study on topic with extension in examining employment, type of decomposition to shed light on the source of gender difference.