“Volatility and Job Creation in the Knowledge Economy,” with O. Gorbachev, Essays in Dynamic General Equilibrium Theory, Festschrift for David Cass, Series: Studies in Economic Theory (Eds. A. Citanna, J. Donaldson, H. Polemarchakis, P. Siconolfi, and S. Spear), vol. 20, pp. 45-74, 2005.