Aid Supplies Over Time: Addressing Heterogeneity, Trends, and Dynamics
利用近50年数据，通过面板协整技术区分长期与短期因素，发现援助国之间存在异质性、从众效应以及安全考虑日益增长的影响，国内宏观经济冲击对援助支出有温和但滞后的作用。
What determines how much foreign aid donors provide? Existing answers to this question point to a complex range of influences. However, the tasks of distinguishing between long- and short-run factors, as well as differences between donors, have not been adequately addressed. Taking advantage of data spanning nearly 50 years, this paper uses panel cointegration techniques to consider these issues. The analysis provides clear evidence for heterogeneity both between donors and over time, bandwagon effects, and a growing influence of security considerations in aid provision. Domestic macroeconomic shocks have a moderate but delayed effect on aid disbursements.