1. Almon, C. (1989). The craft of economic modeling (2nd ed.). Needham Heights, MA: Ginn Press.
2. Ahn, S., & Hemmings, P. (2000). Policy influences on economic growth in OECD countries: An evaluation of the evidence. Economic Department Working Papers No. 246.
3. Butler, L. (1996). A semi-structural approach to estimate potential output: Combining economic theory with a time-series filter. Bank of Canada Technical Report No. 77, Ottawa.
4. Conway, P., & Hunt, B. (1997). Estimating potential output: A semi-structural approach. Bank of New Zealand Discussion Paper G97/9, Wellington.
5. Coutiño, A. (2000). The steady state of the Mexican economy. In Essays on macroeconomic aspects of Mexico. Mexico: Institute Lucas Alamain.