Otree experiment written for the LEEPS Lab at the University of California, Santa Cruz.
This is a real-time economics experiment written in Otree and Otree-redwood (UCSC LEEPS Lab otree websocket extension). It simulates a queue of people who are waiting to go into a 'service room', where they accumulate money. There are different modes of play, but in general players are incentivized to enter the service room as soon as possible. They have the ability to try to swap places with other players in the queue. Sometimes, they are able to offer a portion of their payoff to the players with whom they want to swap.
models.py defines the data fields that the experiment facilitator will collect after the experiment completes (that is, the fields that each player will unknowingly enter data into via their actions - attempt to trade or not, accept trades or not, etc). It also defines a state machine that serves as the backend. For example, when a player enters the service room, a message is sent to the state machine saying their time in the service room has started. The state machine updates the positions of all other players in the queue (advancing them by 1), then reboradcasts the new state to every player.
pages.py defines the different screens participants navigate through in the experiment.
templates/Lines_Queueing/ holds the html for each screen (also known as a page). The queue page is written with Vue.js. When a message is sent from models.py over websockets to the HTML queue page, the Vue machine updates the html, changing what players see. Following the previous example, each players screen would change to show them having advanced one position in the queue.
Otree documentation: https://otree.readthedocs.io/en/latest/ Demo server where you can play this a configuration of this app: leeps-otree.ucsc.edu:8000/demo. Click 'lines fork'.
This software is licensed under the MIT license. Copyright 2019 Eli Pandolfo
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