Examples

General Bimatrix

_images/bimatrix_screenshot.png

The General Bimatrix is a re-implementation of the experiment used in “A Continuous Dilemma”, written in oTree using otree-redwood. The experiment presents participants with a bimatrix game and lets them select a mixed strategy. Their strategy is combined with that of a counterpart to calculate a payoff. The continuous time implementation uses websockets to distribute a players strategy to their counterpart on the order of 100 milliseconds. This enables players to respond to strategy changes in real time, possibly dozens of times over the course of a 2-3 minute period.

Stochastic Bimatrix

_images/stochastic_bimatrix_screenshot.png

Stochastic Bimatrix is similar to Continuous Bimatrix, but with a twist. The bimatrix game being played can switch between 2 matrices over the course of a 2-3 minute period. Switching is controlled with a stochastic variable set by the oTree server and varies based on the players current strategy. Regarding otree-redwood, this shows off the ability of the oTree server to respond to websocket events, as opposed to just simply rebroadcasting them to the group.

Imperfect Monitoring

_images/imperfect_monitoring_screenshot.png

Imperfect Monitoring is another bimatrix game with a twist. First, participants can only choose a pure strategy from the 2 alternatives. Second, players are “locked in” to their strategy choice for a short period of time, on the order of 5-10 seconds. This shows off more of the ability to send websocket events and drive complex behavior using some features of the otree-redwood library.