Thursday, April 30, 2015

Vital Flows: The Effect of Changes on GDP on Foreign Aid

Wealthy states provide an immense amount of developmental aid to poor. In 2013, members of the Organization of Economic Cooperation and Development’s (OECD), Development Assistance Committee (DAC) provided over $135 billion in aid to poor countries around the world. [1] The OECD, a group of rich countries, promotes this kind of developmental state-to-state aid known as Official Development Aid (ODA). The OECD defines ODA as aid provided by a government that is designed to promote the “economic development and welfare of developing countries” that is concessional in nature.[2]

While changes in developmental aid from year to year likely have a number of causes, what role does economic growth in the donor states play? In this study, I set out to uncover to what extent the variance in development aid is an effect of the past (or present) variance in GDP.


While it may seem obvious that economic growth might have an effect on the aid that a country provides to developing states, on closer examination other the picture becomes more complicated. Policy makers could take a number of different factors into account when deciding how much aid to send to other states. States could commit to providing a certain amount of aid per year, regardless of domestic economic conditions. On the other hand, changes in domestic politics could effect significant policy shifts in the foreign aid budget. A quick comparison between GDP and ODA, leaving changes over time to one side for now, demonstrates a positive relationship between the two variables, as shown in Figure 1.


To attempt the estimate the effect of economic output on rich countries’ decision to release aid monies to developing states, I employed a cross-sectional time series model that looked across time and countries for evidence of an effect. Based on the availability of data for inflation-controlled variables, I focused on the period from 1990 until 2012. Although ODA is broken up into a many categories I zeroed-in on the aggregate of all of them, measured in inflation-adjusted 2013 dollars. I also logged both GDP and ODA to estimate a linear relationship.


The OECD provides data on foreign aid as defined as ODA dating back to 1968 for the members of the Development Assistance Committee (DAC). While the OECD is a group of mostly wealthy states, the DAC states focus specifically on promoting development. I therefore decided to focus on current DAC member states 28 in total, excluding the EU, which is also a DAC member but not a state. This core group of 28 states does not include all states that provide large amounts of state-to-state developmental aid.[4] Verily, the OECD is so skewed towards Western Europe and North America, my model could not account for regional differences because too many of the states shared the same region. Still, over the time period in question, the second half of the Twentieth Century, this sample represents a majority of the worlds wealthy donor states. Although I originally intended to estimate this effect for a longer time period, inflation controlled GDP data were not available for these states before about 1990, so the time frame for this study is from 1990 until 2013. This also coincides with the fall of the Soviet Union and the addition of a number of post-Soviet states to the OECD.

To estimate the effect of variances in economic growth on the changes in foreign aid, I employed a cross-sectional time series regression model with country fixed effects, the results of which I present in the table below:



My model attempts to predict current levels of ODA from the individual interactions of countries’ GDP and a number of control variables. Importantly, although it seems implausible that ODA outlays could cause changes in GDP, I attempt to control for such reverse causality by regressing current foreign aid on the prior year’s GDP.[5] “Lagging” GAP by one year in this fashion also allows me to test the proposition that it takes policy makers some time to recognize changes in the real economy and react to them by changing ODA. My model attempts to control for variances between states in a number of ways. First, it employs country-level fixed effects, which is a process that attempts to strip out anything that is constant across time within units from the analysis. The decision to employ fixed effects instead of random effects here was also based on the result of the Hausman Test (p = 0.00). The model also attempts to control for changes in domestic politics, a potential confound, by including two variables: one representing the left, right, or center orientation of the chief executive of a state, the other representing the political orientation of the leading party in the legislature. Finally, as mentioned above, the model also includes control variables for longer term differences between states that might be confounding variables, namely, the region of the world and a country’s history as a post-soviet state.

In conclusion, based on the above results, foreign aid and gross domestic production are highly correlated correlated over time. Moreover, the analysis demonstrates that this correlation exists in a model where foreign aid could not have caused GDP, eliminating the possibility of reverse causality. A one unit increase in the previous year's GDP is correlated with a 1.871 unit increase in the amount of ODA, when political orientation of the executive an leading party in the donor state is held constant. A similar effect exists and is also statistically significant at the 0.01 level  with GDP and ODA from the same year. Problematically, although the model was able to control for the political orientation of governmental leaders, [6] it was not able to control for differences between regions or post-Soviet status, and left those variables out of the regression. Although these results were statistically significant at a high level, meaning that there is a low probability that they were due to chance, it is not possible to conclude that policy makers only use GDP in making determinations about foreign aid. The results however do indicate that it may be likely that government officials do respond to changes in the economy when making decisions about foreign aid. 

Appendix:

Alternative models:





[1] http://www.oecd.org/dac/stats/
[2] http://www.oecd.org/dac/stats/officialdevelopmentassistancedefinitionandcoverage.htm
[3] http://www.oecd.org/dac/stats/development-aid-stable-in-2014-but-flows-to-poorest-countries-still-falling.htm
[4] This includes large states like China and India, which were not relatively wealthy at beginning of the time frame but are now relatively much wealthier.
This also leave out states that the OECD does collect ODA data for although they are not DAC members. For these states, (Bulgaria, Estonia, Kuwait, Turkey*, and the UAE) ODA data was generally also not available for a long enough time period.
[5] Thus the GDP in 1995 is used to predict ODA in 1996, under the assumption that ODA changes in 1996 cannot have cause variance in GDP before those changes took place.
[6] In the dummy variable regression for governmental orientation one variable must be committed from the right, left, center strategy. I elected to set "Center" to the  control. 

No comments:

Post a Comment