1. Day, R., and Gang Z., (1994), ” Infrastructure, Restricted Factor Substitution and Economic Growth”, Journal of Economic Behavior and Organization, 23, pp. 149–166.
2. Day, R., (1995), ” L’existence hors de l’équilibre”, Revue Economique, 46, pp. 1461–1471.
3. Nishimura, K. and Yano, M., (1995), ” Non-linear Dynamics and Chaos in Optimal Growth: An Example”, Econometrica, 63, pp. 981–1001.
4. Grandmont, J.M., Pintus, P., and, De Vilder R., (1996), ” Capital-Labor substitution and Competitive Nonlinear Endogenous Business Cycles”, Cepremap working paper, forthcoming.
5. Day, R., (1982), ” Irregular Growth Cycles”, American Economic Review, 72, pp. 406–414.