Market visualizations

doi:10.1017/eec.2026.10043

Market visualizations

2026-01-01

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AI

DOI：10.1017/eec.2026.10043

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Abstract

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In a $k$-replica Edgeworth box economy, we compare outcomes of laboratory markets in which human traders have different visualizations available on their screens. Novel visualizations include a heat map that shows at a glance the value of all feasible portfolios (i.e., final allocations); a geometric display of the order book; and order entry via point-and-click on the heat map. Efficiency metrics focus on allocations, prices and profitability. Compared to the traditional text-oriented trader screen for the continuous double auction, we find that the novel features generally increase all three efficiency metrics.

Keywords:

continuous double auction

edgeworth box

general equilibrium

graphical user interface

laboratory market

C92

D47

D51

D91

Market visualizations

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