Since the formation of the World Trade Organization, the proliferation of regional trade agreements has raised concerns regarding the prospects of multilateral trade liberalization. The objective of this paper is to assess whether trade among member countries (intra-regional trade) contributes...

We experimentally investigate whether third-party punishment is more effective than second-party punishment to increase public goods contribution. In our experiment, third parties first played the standard public goods game and then made punishment decisions as independent bystanders. We find...