On the validity of RDD for estimating electoral effects

Turns out RD designs may not be so hot in studying electoral effects:

Many papers use regression discontinuity (RD) designs that exploit “close” election outcomes in order to identify the eff ects of election results on various political and economic outcomes of interest. Several recent papers critique the use of RD designs based on close elections because of the potential for imbalance near the thresholg that distinguishes winners from losers. In particular, for U.S. House elections during the post-war period, lagged variables such as incumbency status and previous vote share are signifi cantly correlated with victory even in very close elections. This type of sorting naturally raises doubts about the key RD assumption that the assignment of treatment around the threshold is quasi-random. In this paper, we examine whether similar sorting occurs in other electoral settings, including the U.S. House in other time periods, statewide, state legislative, and mayoral races in the U.S., and national and/or local elections in a variety of other countries, including the U.K., Canada, Germany, France, Australia, India, and Brazil. No other case exhibits sorting. Evidently, the U.S. House during the post-war period is an anomaly.

The paper is here (PDF).

H/T Monkey Cage Blog.

The 2013 Resource Governance Index

The 2013 Resource Governance Index (published by the Revenue Watch Institute) is out. The top performing African countries include Ghana, Liberia?, Zambia and South Africa, with partial fulfillment. The bottom performing countries are Equatorial Guinea, Zimbabwe, South Sudan, the Democratic Republic of Congo and Mozambique.

The 58 nations included in the report “produce 85 percent of the world’s petroleum, 90 percent of diamonds and 80 percent of copper.” Ghana, where we are doing some evaluation  work on extractive sector transparency initiatives, is the best performing African country on the list. Image

More here. 

And in related news, The Africa Progress Report was released last week. The report details the massive loss of revenue by African governments through mismanagement – either by commission and/or omission – of extractive resources. For instance:

The report details five deals between 2010 and 2012, which cost the Democratic Republic of the Congo over US$1.3 billion in revenues through the undervaluation of assets and sale to foreign investors. This sum represents twice the annual health and education budgets of a country with one of the worst child mortality rates in the world and seven million pupils out of school.

The DRC alone is estimated to have 24 trillion dollars worth of untapped mineral resources.

The most bizarre case of resource management in Africa is Equatorial Guinea, a coutnry that is ranked 43rd on the global per capital GNI index but ranks 136th on the Human Development Index (2011).

Below is a map showing flows related to Africa’s vast resources: