We analyze temporary trade barriers (TTB) in Canada in 1989-2009. We find that, despite the retreat in TTB stocks in the last decade, there are signs of a rebound. New AD cases have surged during the crisis, which portends a rise in AD stocks that could last for several years. Thus, the...

The stumbling-block argument asserts that regionalism hinders MFN tariff cutting. If this was of first-order importance over previous decades, we should see a negative relationship between the level of MFN and preferential tariffs, i.e. MFN and PTA tariffs should be substitutes. Using tariff...

This paper analyses the customs union problem in a model containing a continuum of products. The continuum is in three dimensions, so that three countries each have a distinct comparative advantage. Trade patterns are endogenously determined, and changed by policy. This is in the tradition of...

The paper argues that East Asian regionalism is fragile since (i) each nation's industrial competitiveness depends on the smooth functioning of 'Factory Asia' - in particular on intra-regional trade; (ii) the unilateral tariff-cutting that created 'Factory Asia' is not subject to WTO discipline...

Unilateral tariff liberalisation by developing nations is pervasive but our understanding of it is shallow. This paper strives to partly redress this lacuna on the theory side by introducing three novel political economy mechanisms with particular emphasis is on the role of production...

We assess the impact of U.S. trade policy uncertainty (TPU) toward China in a tractable general equilibrium framework with heterogeneous firms. We show that increased TPU reduces investment in export entry and technology upgrading, which in turn reduces trade flows and real income for consumers....

Natural resources account for 20% of world trade, and dominate the exports of many countries. Policy is used to manipulate both international and domestic prices of resources, yet this policy is largely outside the disciplines of the WTO. The instruments used include export taxes, price...

What kind of tariff reform is likely to raise welfare in situations where tariff revenue is important? Uncertainty about specification and risk from imprecise parameter estimates of any particular specification reduce the credibility of simulation estimates. A promising alternative is to develop...

In this paper we explore the potential gains that a trade agreement (TA) can provide by regulating trade-policy uncertainty, in addition to the more standard gains from reducing the mean levels of trade barriers. We show that in a standard trade model with income-risk neutrality there tends to...

The National Treatment clause (NT) is the first-line defence in the GATT (and in most other trade agreements) against opportunistic exploitation of the inevitable incompleteness of the agreement. This paper examines the role of NT as it applies to internal taxation under the GATT. It is shown...