We show that the effects of tariff changes on welfare and import volume are fully characterised by their effects on the generalised mean and variance of the tariff distribution, implying two “cones of liberalisation” in commodity price space. Because welfare is negatively but import volume...

We introduce an index of trade policy restrictiveness defined as the uniform tariff that maintains the same trade volume as a given tariff/quota structure. Our index overcomes the problems of the trade-weighted average tariff: It avoids substitution bias, correctly accounts for general...

[This item is a preserved copy. To view the original, visit http://econtheory.org/] We consider a (pure) public goods provision problem with voluntary participation in a quasi-linear economy. We propose a new hybrid solution concept, the free-riding-proof core (FRP-Core), which endogenously...