1. Aghion, Phillippe and Peter Howitt, 1991b, ?Unemployment: A Symptom of Stagnation or a Side-effect of Growth??, European Economic Review 35(2?3), April.
2. Baily, Martin N., Charles Hulten and David Campbell, 1992, ?The Distribution of Productivity in Manufacturing Plants?, Brookings Papers: Microeconomics, 1992.
3. Baldwin, John R. and Paul K. Gorecki, 1990, Structural Change and the Adjustment Process: Perspectives on Firm Growth and Worker Turnover, Ottowa: Economic Council of Canada.
4. Baldwin, John R. and Paul K. Gorecki, 1991, ?Productivity Growth and the Competitive Process: The Role of Firm and Plant Turnover?, in P. A. Geroski and J Schwalbach (eds.), Entry and Market Contestability: An International Comparison, Oxford: Basil Blackwell, pp. 244?256.
5. Bartelsman, Eric J. and Phoebus J. Dhrymes, 1992, ?Productivity Dynamics: U.S. Manufacturing Plants, 1972?1986?, FEDS working paper No. 94-1, Federal Reserve Board, January.