1 Two Concepts of Agreement1 Christian List A central problem of democracy is the aggregation of divergent individual inputs into overall collective decisions. Social-choice-theoretic impossibility results famously demo

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• Social choice theory
• Mind
• Microeconomics
• Philosophy of life
• Social philosophy
• Preference
• Independence of irrelevant alternatives
• Consensus decision-making
• Utility
• Decision theory
• Economics
• Philosophy

Measuring the Bene…ts of Global Liberalization with a Consistent Tari¤ Aggregator David Laborde Will Martiny Dominique van der Mensbrugghez Preliminary draft. Do not quote.x

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• Demand
• Price index
• Aggregation problem
• Economic model
• Aggregate demand
• Real versus nominal value
• Expenditure function
• Economics
• Consumer theory
• Macroeconomics

18. Aggregation Issues A. Introduction 18.1 In Chapter 15 a basic index number problem was identified: how exactly should the microeconomic information involving possibly millions of prices and quantities be aggregated

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• Index numbers
• Price index
• Törnqvist index
• Étienne Laspeyres
• Real versus nominal value
• Demand
• Price indices
• Statistics
• Economics
• Econometrics

1 Primal-dual constraint aggregation method Consider a convex optimization problem in the form minff (x)jx 2 X g subject to where f (
) : Rn

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