To test potential bilateral causalities relation between HIV-AIDS mortality and GDP, we propose a simple Granger noncausality test for heterogeneous panel data models. 44 African countries are selected for annual pooled data from 1990 to 2009. Results are presented for the heterogeneous...

We investigate experimentally whether higher trust leads to increased performance by relying on simple trust games. Our results show that trust and performance are positively related but not as strongly as suggested in the investment game. As a side result, we observe that the rewards of the...