1. Allison, J.Demand economics and conservation in ratio and interval schedules. Paper presented at the meeting of the Psychonomic Society, San Antonio, Texas, November 1978.
2. Allison, J.Consumption in an experimental welfare economy. Paper presented at the meeting of the Association for Behavior Analysis, Dearborn, Michigan, June 1979.
3. Allison, J.Constraints on performance in two elementary paradigms. Paper presented at the Second Harvard Symposium on Quantitative Analyses of Behavior, Cambridge, Massachusetts June 1979.