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Computing Walrasian Equilibria: Fast Algorithms and Structural Properties
[article]

2016
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arXiv
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pre-print

We present the first polynomial time algorithm for computing Walrasian equilibrium in an economy with indivisible goods and general buyer valuations having only access to an aggregate demand oracle, i.e., an oracle that given prices on all goods, returns the aggregated demand over the entire population of buyers. For the important special case of gross substitute valuations, our algorithm queries the aggregate demand oracle O(n) times and takes O(n^3) time, where n is the number of goods. At

arXiv:1511.04032v2
fatcat:tharcfrx65b4xnr7y4nonpxuei