With this tool the user can enter multiple agents' preferred allocations of three public goods, and it calculates the Frugal Majority Set. The Frugal Majority Set is defined here (The same solution concept is called 1-Median in this paper).
To use the tool you only need to click the gray buttons. One click represents one vote for that allocation. The bottom left corner represents the first public good, the bottom right corner represents the second public good and the upper corner represents the third public good. To get used to the voting, we recommend that you try it out.The current votes are listed in the upper textfield. To remove a vote, simply click the "Add" button on the right hand side and it will switch to "Deduct", now clicking will deduct one vote. Negative votes are not allowed.
Once a number of agents have cast their vote we can either calculate the Frugal Majority Set or we can calculate the q-option set. The q-option set computes which allocations can become part of the Frugal Majority Set with q additional votes. The results will be shown graphically in the triangle and as a list in the textfields (the middle one for Frugal Majority Set and the bottom one for the Optionset). The textfield
on the right shows the ordered allocated amounts and their sum.
To delete all cast votes and start over, the "Start/Reset" button can be used. In this application the amount allocated is 15 and only integers can be allocated