This paper estimates the impacts of disclosing information online and through the newspapers of gas stations that violate fuel supplying standards in Mexico. Using data from inspection histories, it finds that disclosing information online decreases the probability that any gas station would be...

In the late 80's and early 90's Mexico eliminated minimum price policies of main agricultural commodities and substituted those policies by government operated contract markets. Contracts can help smooth price variations and facilitate risk-sharing but their impact on price levels is uncertain....