Research on the causes of regional differences in urban residential land incremental value based on shapley value decomposition framework

Abstract

This paper studied the formation mechanism of the differences of land incremental value among various regions by using the Shapley value decomposition framework. It was the first time to introduce inequality indexes to measure the differences in land incremental value in various regions, then a semi-logarithmic regression equation were constructed to determine the influencing factors, and finally the contribution of each factor was measured through the Shapley value decomposition model. The results indicated that: the regional inherent differences between cities and the differences in the residential land price per land area have a stable and strong impact on the differences in urban residential land value increment; the differences in completion value of residential buildings have a certain contribution on the expansion of regional differences in urban residential land incremental value, but they fluctuate greatly; the contribution of the differences of housing investment demand to the differences of urban residential land incremental value has gradually increased.