概要
In this paper, we examine whether aid proliferation hinders aid effectiveness in promoting economic growth. We employ a wide variety of specifications of the standard aid-growth regression using Roodman's (2007a) dataset. Specifically, we include a donor-concentration index as a proxy for donor proliferation and the interaction term between aid and a donor-concentration index as additional independent variables. Our best empirical results are in favor of a hypothesis that aid proliferation involves a negative effect on economic growth of the recipient countries with proper correction for possible biases arising from omitted variable and endogeneity problems.