There was an interesting study looking at measures of honesty and economic growth: https://www.uea.ac.uk/documents/3154295/7054672/Honesty+pape....

Chinese nationals were in the top 2 of both measures of dishonesty (which didn't correlate all that well in general, so I'm not sure "honesty" is all that easy to measure), while British nationals were in the bottom 2 of both. One of the correlations they found was that rates of honesty were correlated with rates of Protestant Christianity.