Yannick Markhof is a PhD Fellow at the United Nations University (UNU-MERIT). His research studies how data quality and availability affect our understanding of key issues in economic development. Yannick collects and uses survey microdata - often linked with large administrative datasets - to study (i) how emerging economies can sustainably raise tax revenue, (ii) the impact of economic shocks on the living standards of vulnerable populations, (iii) how we can get higher quality data on these and other policy-relevant issues in international development. Much of his research uses large-scale field- or methodological experiments.