One frequently encounters the argument that trade liberalisation and deregu
lation of domestic markets in developing countries result in increased ince
ntives for agriculture. This proposition is considered for the Central Amer
ican countries, all of which passed through fundamental policy change eithe
r in the 1980s or 1990s. After characterising the policy regimes in each co
untry over various periods, the analysis moves to an inspection of agricult
ural trade performance. The evidence indicates that liberalisation of forei
gn trade and deregulation of domestic markets has not been associated with
improved agricultural performance, It is suggested that the failure of agri
culture to respond positively to policy changes can be in part explained by
an unfavourable trend in world prices of the region's major tradable commo
dities.