ALERT: This system is being upgraded on Tuesday December 12. It will not be available for use for several hours that day while the upgrade is in progress. Deposits to DukeSpace will be disabled on Monday December 11, so no new items are to be added to the repository while the upgrade is in progress. Everything should be back to normal by the end of day, December 12.
Now showing items 1-10 of 36
Spaced responding and choice: A preliminary analysis
(Journal of the Experimental Analysis of Behavior, 1968)
The effect of informative feedback on temporal tracking in the pigeon
(Journal of the Experimental Analysis of Behavior, 1969)
The Determinants of Industrial Research and Development: A Study of the Chemical, Drug, and Petroleum Industries
Economists have recently grown interested in doing research on research or R & D, as it is called in industrial circles. Several studies have tested Schumpeter's hoary hypothesis that large firms are responsible for most ...
The Determinents of Industrial Research and Development: A study of the chemical, drug, and petrolium industries
(Journal of Political Economy, 1968)
"Household Savings Behavior in the Developing Economies: The Indonesian Case"
(Economic Development and Cultural Change, 1968-04)
"International Migration and Economic Growth: Australia, 1865-1935"
(Journal of Economic History, 1965-09)
"Demographic Cycles and Economic Growth: The Long Swing Reconsidered"
(Journal of Economic History, 1969-12)
"Demand Patterns, Demographic Change, and Economic Growth"
(Quarterly Journal of Economics, 1969-02)
"An Experiment with TIPS: A Computer-Aided Instructional System for Undergraduate Education"
(American Economic Review, 1968-05)