Abstract
We investigate a measuring method of national accounts system based on micro transaction data. We have hitherto developed the technology for crowd-sourcing and managing the transaction data of individuals, firms and governments. We have been designing and experimenting such a national accounts and statistics systems using data and exchange algebra. The objective of this paper is to formulate a plan of the Transaction-based Economics by combining the concept of the electronic post office box (e-POB) and the technology of crowd sourcing and Algebraic Accounting Description Language (AADL).