Besides temporal and spatial aggregation issues in the analysis of asymmetric response of retail gasoline prices, previous studies have also largely ignored parameter heterogeneity across fuel stations. This paper addresses the aggregation issues and the parameter homogeneity assumption by...

We analyze a model for N different measurements of a persistent latent time series when measurement errors are mean-reverting, which implies a common trend among measurements. We study the consequences of overdifferencing, finding potentially large biases in maximum likelihood estimators of the...

The modern Condorcet jury theorem states that under weak conditions, when voters have common interests, elections will aggregate information when the population is large, in any equilibrium. Here, we study the performance of large elections with population uncertainty. We find that the modern...