The majority of African countries implemented import liberalisation in the 1990s. This paper explores factors that may explain the pattern of protection and of tariff reform. We consider political economy explanations, motivated specifically by the Grossman and Helpman (1994) model of protection in response to industry lobbies, and the possibility that reforms are technocratic. Using industry-l...

This paper reassesses the impact of trade liberalization on productivity. We build a new, unique database of effective tariff rates at the country-industry level for a broad range of countries over the past two decades. We then explore both the direct effect of liberalization in the sector considered, as well as its indirect impact in downstream industries via input linkages. Our findings point...

This paper extends Symeonidis (2003)’s duopoly model with product differentiation to discusses how FDI spillovers that decreases the quality difference between vertically differentiated products of the home and foreign firms affects the home firm’s decision on plant location. This paper shows that whether the degree of spillover is exogenous or endogenous, it may have a positive relationship wi...

The model shows how a regulated monopolist’s price should change as random cost and demand parameters are revealed. The regulator has a Ramsey-type problem. With a linear tariff a trade-off between allocative efficiency and risk sharing typically exists. The attitudes of the consumer and the firm to both income and price risk determine how the price should move. Sufficient conditions are found ...

This paper develops a dynamic, stochastic, general-equilibrium (DSGE) model for the Canadian economy and evaluates the real effects of monetary policy shocks. To generate high and persistent real effects, the model combines nominal frictions in the form of costly price adjustment with real rigidities modelled as convex costs of adjusting capital and employment. The structural parameters identif...

This paper introduces the concept of a steepest ascent tariff reform for a small open economy. By construction, it is locally optimal in that it yields the highest gain in utility of any feasible tariff reform vector of the same length. Accordingly, it provides a convenient benchmark for the evaluation of the welfare effectiveness of other tariff reform proposals. We develop the properties of t...

The gold standard was quite stable in the past: price level changes were relatively small, and trade cycles mild. However, its past stability does not guarantee nowadays. We show that of to shocks stemming from world market depends critically on size monetary stock relative extent these shocks. Every change decreasing lowers stability. discuss some consequences thesis too: first, any system eco...

In this paper we study the optimal import policy in an oligopolistic market with a given number of quantity-setting firms. In the absence of fixed costs, we show that if the policy instrument is an import quota, the optimal policy is either free trade or autarky, while if the instrument is a tariff the optimal policy is neither free trade nor autarky. In the case of fixed costs, we show that co...

This paper examines the welfare implications of an existence of free trade agreements (FTAs) and customs unions (CUs) in the GATT system, in the presence of cross-foreign ownership among countries. In particular, two GATT regimes are analyzed: a pure GATT regime without any regional free trade agreements, and modified GATT regime with either an FTA or a CU. This paper argues that, when foreign ...