Productivity Analysis of Grape by Cultivation Types using MPI

Abstract

The purpose of this study is to analyse the productivity changes of grape by cultivation types. A Data Envelopment Analysis based Malmquist Productivity Index (MPI) was adopted using Income Survey data of Agricultural Products (2001 to 2015) from the Korean Rural Development Administration. MPI was decomposed into technical efficiency change and technical change. Technical efficiency change was further decomposed into pure technical efficiency change and scale efficiency change. The analysis results are summarized as follows. First, the MPI of open-field grape shows an annual increase of 0.5%. Technical efficiency was decreased at a CAGR of 0.1%, while technical change increased at a CAGR of 0.5%. Second, the MPI of greenhouse grape shows an annual increase of 4.7%. Also, technical efficiency and technology level were increased at a CAGR of 0.3% and 4.4%, respectively. The results of this paper may provide useful information for the background and cause of grape farmers’ closing orchard