Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/52727 
Year of Publication: 
2011
Series/Report no.: 
Working Paper No. 101
Publisher: 
Universität Leipzig, Wirtschaftswissenschaftliche Fakultät, Leipzig
Abstract: 
This paper shows that dynamic inefficiency can occur in dynamic general equilibrium models with fully optimizing, infinitely-lived households even in a situation with underinvestment. We identify necessary conditions for such a possibility and illustrate it in a standard R&D-based growth model. Calibrating the model to the US, we show that a moderate increase in the R&D subsidy indeed leads to an intertemporal free lunch (i.e., an increase in per capita consumption at all times). Hence, Milton Friedman's conjecture There ain't no such thing as a free lunch (TANSTAAFL) may not apply.
Subjects: 
intertemporal free lunch
dynamic inefficiency
R&D-based growth
transitional dynamics
JEL: 
E20
H20
O41
Document Type: 
Working Paper

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