Aid and income: Another time-series perspective

Matthijs Lof, Tseday Jemaneh Mekasha, Finn Tarp

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)
223 Downloads (Pure)


This study provides a replication of the empirical results reported by Nowak-Lehmann, Dreher, Herzer, Klasen, and Martínez-Zarzoso (2012) (henceforth NDHKM). We uncover that NDHKM relied on a regression model which included a log transformation of variables that are not strictly positive. This led to nonrandom omission of a large proportion of observations. Furthermore, we show that NDHKM’s use of co-integrated regressions is not a suitable empirical strategy for estimating the causal effect of aid on income. Evidence from a Panel VAR model estimated on the dataset of NDHKM, suggests a positive and statistically significant long-run effect of aid on income.
Original languageEnglish
Pages (from-to)19-30
JournalWorld Development
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed


  • foreign aid
  • growth
  • time-series
  • VAR models


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