Mobility indices are popular tools designed to quantify the extent of income changes by aggregating "local" distributional change into a "global" scalar according to some rule. For some mobility measures, this aggregation rule is only implicit in their standard definition. We derive an...

Various fields of economic analysis (e.g., growth and productivity) and economic policy (e.g., monetary and social policy) rely on accurate measures of price change. Unfortunately, the price index formulae that most price statisticians consider as particularly accurate - the superlative indices...

Summary In empirical economic research, individual prices are often aggregated into average prices of subaggregates. Then, these average prices are aggregated to produce the average price of the total aggregate. Often, such two stage procedures help to illuminate the underlying forces driving...