Mirroring the railroad industry of the 1940's and 1950's, the trucking industry today appears to be achieving impressive productivity gains. But it is easy to confuse true productivity advances in transportation industries with changes in ton-miles per unit of input that are due simply to...

Quality is a subjective notion and encompasses all aspects of how well a product meets users' needs. It is inherently a multi-faceted concept that cannot be easily defined; any chosen definition is likely to change over time as new aspects gain importance following the evolving users' needs. The...

This paper looks behind the standard, publicly available employment and unemployment statistics that studies of transition economy labor markets have typically relied upon. We analyze microdata on detailed labor force survey responses in Russia, Romania, and Estonia to measure nonstandard,...

Over the last decade, a number of methodological manuals on macroeconomic datasets were produced by the international community. For a number of reasons, these manuals could be viewed as fragmented, disconnected, and branching in various directions. This paper groups by topics and broad...

Data published in IMF country staff reports and International Financial Statistics (IFS) may differ for identical variables and, at times, users may be unaware of the reasons for these differences and lack the information needed to permit reconciliation. Such discrepancies stem principally from...

This paper shows how distance functions, a tool typically employed in production economics to measure the distance between a set of inputs and a set of outputs, can be employed to approximate a composite measure encompassing the many dimensions of well-being. It also illustrates how to implement...

Self-reported work disability is analyzed in the US, the UK and the Netherlands. Different wordings of the questions lead to different work disability rates. But even if identical questions are asked, cross-country differences remain substantial. Respondent evaluations of work limitations of...

This paper investigates four topics. (1) It examines the different roles played by the propensity score (probability of selection) in matching, instrumental variable and control functions methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It...

This paper examines the issue of the impact of aggregation in the empirical analysis of euro area labour markets. A Phillips Curve describing the adjustment of unit labour costs is estimated at the national and aggregate level for the 5 largest euro area countries. Potential sources of...

Analyses of treatments, experiments, policies, and observational data, are confounded when people's treatment outcomes and/or participation decisions are influenced by those of their friends and acquaintances. This invalidates standard matching techniques as estimation tools. For instance, the...