Further investigations of the donor-flight response

In Sweeney et al. (2014), we presented quantitative evidence that SWAp implementation has been associated with a 29.4 reduction in DAH receipts amongst a poorest subgroup of implementing countries. This evidence was derived using rigorous econometric methods and best available data. In this paper, we discuss the contribution such methods can make in assessing impacts of health SWAps and further consider issues of heterogeneity and measurement error. Additional regression results are presented that demonstrate the key findings in Sweeney et al. (2014), are robust to changes in model assumptions, including those suggested by Paul et al. Finally, we discuss interpretation of our findings, test an alternative explanation of the cause of donor-flight and propose future research to strengthen the evidence base on impacts of the health SWAp.