Exports, Margins and Productivity Growth: With an Application to the Canadian Softwood Lumber Industry
通过检验价格-成本边际并分解全要素生产率增长，评估加拿大软木行业的配置效率和动态效率，发现价格等于短期边际成本，生产率年均增长3%主要来自技术进步。
The purpose of this paper is to evaluate the allocative and dynamic efficiency of the Canadian softwood lumber industry by testing for the existence of price-cost margins and decomposing rates of total factor productivity (TFP) growth. A dynamic model of multiple output production and investment is developed in which output is sold domestically and exported. Price-cost margins are parametrized and estimated. The empirical results show that prices are equated to short-run marginal costs in domestic and export markets. TFP growth is decomposed into four elements; technological change, returns to sale, price-cost margins and capital adjustment. The empirical results show that, for the Canadian softwood lumber industry, TFP growth averaged 3 percent per year and the major contributing element was the rate of technological change. Copyright 1994 by MIT Press.