A note on the theory and measurement of trust in explaining differences in economic growth

This paper takes issue with the trend to attribute differencesin economic growth rates to differences in interpersonal trust.I discuss the World Values Survey (WVS) measure that is usedto operationalise trust at the macro level. I hypothesise thatthere is a mismatch between the theoretical argument and theempirical operationalisation of trust. Instead of measuringtrust, the WVS measure may instead proxy the well-functioningof institutions. I provide circumstantial evidence for thisthesis by a principal components analysis of trust and institutionsand a robustness test of Zak and Knack's (2001. Trust and growth,Economic Journal, vol. 111, 295–321) seminal study ontrust and economic growth.