The Effect of Trust on Public Support for Biotechnology : Evidence from the U.S. Biotechnology Study, 1997-1998

The purpose of this paper is to examine the extent to which trust directly affects public support for biotechnology, particularly in applications to food production and genetic modification of crop plants. Unlike previous research in which trust is assumed to be exogenous, this paper posits that trust is endogenously determined. An econometric model is developed that controls for the endogeneity of trust using instrumental variable and selection correction techniques. Using data from the U.S. Biotechnology Study, this study finds that the effect of trust on public support is substantially stronger than previous estimates