TY - JOUR AU - Blomstrom,Magnus AU - Wolff,Edward N. TI - Growth in a Dual Economy JF - National Bureau of Economic Research Working Paper Series VL - No. 4433 PY - 1993 Y2 - August 1993 UR - http://www.nber.org/papers/w4433 L1 - http://www.nber.org/papers/w4433.pdf N1 - Author contact info: Magnus Blomstrom European Institute of Japanese Studies Stockholm School of Economics Post Office Box 6501, Sveavagen 65 S-113 83 Stockholm SWEDEN Tel: 46-8-7369265 Fax: 46-8-313017 E-Mail: magnus.blomstrom@gmail.com Edward N. Wolff Department of Economics New York University 19 W. 4th Street, 6th Floor New York, NY 10012 Tel: 212/998-8917 Fax: 212/995-4186 E-Mail: edward.wolff@nyu.edu AB - Growth and structural transformation of the manufacturing sector in developing countries are generally considered to be the result of the expansion of the "modem" (large-scale) sector relative to the "traditional" (small-scale) sector. Examining the sources of labor productivity growth in Mexican manufacturing, however, does not provide support for such a conclusion. Although we find that labor productivity levels vary almost in direct relation to establishment size, labor productivity growth shows no systematic variation by size class. In fact, small establishments have had the same rate of labor productivity growth as larger ones, partly because of the "excise-effect" (i.e. the exiting of low-productivity, small plants). Moreover, most of the variation in labor productivity across plant class sizes is found to be due to differences in capital intensity. The variation in TFP levels across size classes tends to be small. Thus, our results remove some justification of the policy measures that favor large firms in developing countries. ER -