TY - JOUR AU - Jovanovic,Boyan AU - Rousseau,Peter L. TI - Specific Capital and Technological Variety JF - National Bureau of Economic Research Working Paper Series VL - No. 13998 PY - 2008 Y2 - May 2008 UR - http://www.nber.org/papers/w13998 L1 - http://www.nber.org/papers/w13998.pdf N1 - Author contact info: Boyan Jovanovic New York University Department of Economics 19 W. 4th Street, 6th Floor New York, NY 10012 Tel: 212/998-8953 Fax: 212/995-4186 E-Mail: Boyan.Jovanovic@nyu.edu Peter L. Rousseau Department of Economics Vanderbilt University VU Station B #351819 2301 Vanderbilt Place Nashville, TN 37235-1819 Tel: 615/343-2466 E-Mail: peter.l.rousseau@vanderbilt.edu AB - Growth of technological variety offers more scope for the division of labor. And when a division of labor requires some specific training, the technological specificity of human capital grows and, with it, probably the firm specificity of that capital. We build a simple model that captures this observation. The model implies that a rising specialization of human and physical capital raises the rents in the average match between a firm and its human and physical capital. We document that in the last 40 years the firm's share of those rents has also grown, and we use the model to explain why this shift may have taken place. ER -