This paper builds on and extends this existing work in four
main ways. First, we complement single sector studies such as Anders
and Caswell (2009) and Tran et al. (2012) by covering a wide
range of agricultural products from HS Chapters 1–24. In light of
differences in the level of product differentiation between manufactured
goods sectors, like textiles and clothing (Czubala et al.
(2009)), it is important to know whether similar mechanisms are
at work in the relatively more homogeneous agricultural sector.
Second, we focus on the increasingly important area of voluntary
standards, rather than the mandatory standards considered by Disdier
et al. (2008). Third, we allow for standards to have different effects
on developing and developed country exporters. Fourth, our
dataset allows us to identify agricultural product standards that
are internationally harmonized versus those that are not, as in Czubala
et al. (2009) and Portugal-Perez et al. (2009) for textiles and
clothing, and electronic goods, respectively.