This paper improved the known study for technical progress in Malmquist productivity index calculating.In the method,all the possible movements for decision mak
In general the accuracy of mean estimator can be improved by stratified random sampling.In this paper,we provide an idea different from empirical methods that t
In order to maintain the overall social interest in land use and improve the level of land administration, an information system for land-use planning and management (ISLUPM) was established, which is