TY - JOUR AU - Helpman,Elhanan TI - Endogenous Macroeconomic Growth Theory JF - National Bureau of Economic Research Working Paper Series VL - No. 3869 PY - 1993 Y2 - February 1993 UR - http://www.nber.org/papers/w3869 L1 - http://www.nber.org/papers/w3869.pdf N1 - Author contact info: Elhanan Helpman Department of Economics Harvard University 1875 Cambridge Street Cambridge, MA 02138 Tel: 617-495-4690 Fax: 617-495-7730 E-Mail: ehelpman@harvard.edu AB - The paper focuses on the innovation-based approach to endogenous growth. It begins by spelling out conditions for sustained long-run growth in neoclassical economies and uses these conditions as a standard of comparison for the conditions required to sustain long-run growth in economies with product innovation. It presents two models of product innovation that can sustain growth in the long run. The models share the same fundamental mechanism of economic growth. They are used to derive a variety of implications relating structural features to long-run growth rates and they are then applied to a number of policy issues. The usefulness of the approach represented by these models is examined by considering a number of issues, such as unemployment and trade relations. ER -