最適契約として捉えたインフラプロジェクトの事前評価と事後評価

概要

論文の詳細を見る
In general, the techniques of the policy evaluation are classified into two categories: ex-ante evaluation and ex-post evaluation. The role of the ex-ante evaluation is to remove the inefficiency in the allocation of the scarce budget. On the other hand, the role of the ex-post evaluation is ambiguous and its methodology is not well established. However, it is also true that the ex-post evaluation is strongly requested for the efficient public investment. Therefore, this paper aims to answer the following questions: “What is the role of the ex-post evaluation and which kind of methodology is needed?”Based on the contract theory, we analyzed for the mechanism which induces the undistorted implementation of the ex-ante evaluation. Further, we examined the role of the ex-post evaluation interpreting the results of the model analysis. From the results, we concluded that i) the role of the ex-post evaluation is to give the incentive for the undistorted implementation of the ex-ante evaluation to the analyst who implements the ex-ante evaluation, and ii) the methodology of the ex-post evaluation is one of the following two: to measure the realized social net benefit or to confirm the probability of the realized social state in the ex-ante forecast.
日本地域学会の論文