We investigate whether and how subjects adjust their strategies over time in a finite-horizon game with a dynamic public bad. Every period, subjects choose a production level that generates an immediate private benefit but also a proportional negative externality that imposes a cost on all group members. Such “emissions” partially carry over to future periods and thus can accumulate and impose increasing costs. Previous studies estimated behavioral strategies in this environment by assuming that the effect of others’ past choices on decisions is constant over time. We find evidence of strategy adjustment, and that it is affected by experience, context and environmental state variables. Overall, subjects’ decisions are not affected by choices of others initially, when they are learning the environment, but reciprocity becomes significant with experience.
Strategy Adjustments in Games with a Dynamic Public Bad: Experimental Evidence Available to Purchase
This paper was written specifically for the call for submissions for the special issue honoring Richard (Dick) Day after one of the co-authors, Svetlana Pevnitskaya, was invited to submit a paper. Svetlana Pevnitskaya was a student of Dick and had the opportunity to directly witness his intellectually inquisitive and curious mind and his openness to explore a broad range of research approaches and methods. Dick was not afraid to consider unorthodox approaches if he believed them to be promising. Dick Day is well known for studying economic dynamics, where he was motivated by and contributed to a series of important practical policy questions. In his quest for better methods and the accuracy of results he became interested very early on in human decision making and its deviations from classical theory, as well as the effect such deviations would have on macroeconomic models. These areas of research remain very active today. To honor Dick, Svetlana decided to make a contribution for this special issue from the line of research with experimental analysis of dynamic games, extending prior research with Dmitry Ryvkin on games with a dynamic public bad. Furthermore, to pay respects to Dick’s innovative approach, this paper introduces a novel idea of investigating whether individual strategy in this game is itself dynamic and evolves with time and experience.
Pevnitskaya S, Ryvkin D (2022), "Strategy Adjustments in Games with a Dynamic Public Bad: Experimental Evidence". Review of Behavioral Economics, Vol. 9 No. 2 pp. 173–184, doi: https://doi.org/10.1561/105.00000152
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