Distribution of the Japanese posted land price and the generalized entropy

The land price can be considered as the economic data which reflects the interactive activity of markets (land market). Since the cumulative distributions often exhibit power law behavior in a number of complex systems, we attempted to investigate the posted land prices available in Japan for the most recent six years of the recession period after the bubble economy. They also seem to be in this category within a certain range. We observe that the generalized exponential function with one parameter which has been frequently used in generalized thermostatistics serving to track the annual change of the distributions