Export and Regional Growth: A CGE Approach

The relationship between trade and growth has been a familiar topic of discussion in the development literature. More often, the question posed concerns the effects of international trade on economic growth, and thus focuses on trade as an active “agent” of growth. This active role played by international trade can be found in many different models. Todaro (1994) concludes that trade can be an important stimulus to rapid economic growth, although it might not be a desirable strategy for economic and social development. The contribution to development depends on the nature of the export sector, the distribution of its benefits, and the sector’s linkages with the rest of the economy. It seems that, to the extent we are only interested in the effects of international trade on pure economic growth, there is a consensus that trade can provide an important stimulus to growth. At the sub-national level, the export base theory provides the foundations to different models of regional development. Recently, however, given the focus on globalization issues and the implicit assumption that a region’s economic future is inextricably tied with its ability to compete in the international export market, international trade has attracted the attention of regional analysts as well. In this paper we address some of these issues. An interstate CGE model is implemented to simulate the likely implications of state export growth on the structure of the Brazilian economic interregional system. Key-words: regional development, computable general equilibrium, trade.

Regional Absorption of Terms of Trade Shocks

As the process of global integration evolves, developing economies become more and more dependent upon the swings of international markets. Changes in the external environment and economic policy have played a major role in determining the performance of these economies. Terms of trade shocks represent one of the most important issues related to recent developments in low and middle income countries, whose effects have been widely studied in the economic literature. However, attention has always been focused on the national economies, without any consideration of the ability of these economies to absorb these shocks through interregional interactions. In this paper we address this issue using an bottom-up interregional CGE model. It is shown that the degree of integration of the national economies helps to absorb external shocks, decreasing the adverse impacts of negative terms of trade shocks as the economy becomes more integrated.

Transportation Costs, Increasing Returns and Regional Growth: An Interregional CGE Analysis

The purpose of this paper was threefold. First, we presented a flexible analytical framework, based on sound and consistent economic theory and data, in order to assess the likely state/sectoral/income effects of policy changes in Brazil. This is the first fully operational interstate CGE model implemented for the Brazilian economy, based on previous work by the author and associates. Among the features embedded in this framework, modeling of scale economies and transportation costs provides an innovative way of dealing explicitly with theoretical issues related to integrated regional systems. Results seemed to reinforce the need to better specifying spatial interactions in interregional CGE models. Second, in order to illustrate the analytical capability of the CGE module, we presented a simulation, which evaluated the regional impacts of a decrease in transportation costs, in accordance with recent policy developments in Brazil. Rather than providing a critical evaluation of this debate, we intended to emphasize the likely structural impacts of such policies. Third, previous diagnostics suggested the need to make a more in-depth analysis of trade flows between the Brazilian states, potentially leading to generalizations regarding the type of trade involved, changes in its composition through time as the Brazilian economy develops, and the implications of these structural differences in the coordination and implementation of development policies. In order to address this issue we gave interregional trade its proper place by taking into account a fully specified interstate system of accounts specially developed for the purpose of calibrating the CGE model.

Trade Liberalization and Regional Inequality - Do Transportation Costs Impose a Spatial Poverty Trap?

This paper focuses on the spatial impacts of barriers to trade, in the form of tariffs, in a national economy. More specifically, we are concerned with the spatial impediments for the internal transmission of the potential benefits of trade liberalization, in the form of high transportation costs that the more remote regions face. The strategy adopted in this research utilizes a spatial CGE model integrated to a geo-coded transportation model to evaluate shifts in the economic center of gravity and regional specialization in the Brazilian economy due to further liberal tariff policies. Comparative advantage is grasped through the use of differential regional production technologies; geographical advantage is verified through the explicit modeling of the transportation services, as well as increasing returns associated to agglomeration economies; and cumulative causation appears through the operation of internal and external multipliers and interregional spillover effects.

Estimating the impacts of climate change on Brazilian regions

An integrated approach projects the economic impacts from climate change and adaptation and mitigation policies, explicitly considering the various territorial scales in Brazil (macro-regions, states, micro-regions, and networks of cities). A computable general equilibrium (GCE) model was used to simulate two climate change-free scenarios regarding the future of Brazil’s economy that are consistent with the global economic development trends under IPCC’s scenarios A2 and B2. Climate shocks, captured by the model through impacts on the agricultural/ livestock and energy sectors, were applied to these scenarios. The socio-economic trends of the scenarios with and without global climate change were reviewed in terms of benefits and costs for Brazil and its regions. The models interact with the agricultural/livestock and energy sector studies through variables such as energy generation and consumption for different sectors and regions, replacement of sources of energy in the production process and consumption by the residential sector, agricultural yields and land use, etc. These, in turn, are dependent on climate variables, future water supply and other economic factors.

TRADE LIBERALIZATION AND REGIONAL INEQUALITY: DO TRANSPORTATION COSTS IMPOSE A SPATIAL POVERTY TRAP?

In this paper, we focus on the regional (intra-national) impacts of barriers to trade, in the form of tariffs, in a national economy. More specifically, we are concerned with the spatial impediments for the internal transmission of the potential benefits of trade liberalization, in the form of high transportation costs that the more remote regions face. A cost-competitiveness approach, base don relative changes in the sectoral and regional cost and demand structures, is adopted to isolate the likely spatial effects of further tariff reductions in Brazil. It tackles the three basis for the analytical framework proposed in the literature: comparative advantage is grasped through the use of differential regional production technologies; geographical advantage is verified through the explicit modeling of the transportation services and the costs of moving products based on origin-destination pairs, as well as increasing returns associated to agglomeration economies; and cumulative causation appears through the operation of internal and external multipliers and interregional spillover effects in comparative-static experiments, such as those proposed here.