We propose a methodology for combining several sources of model and data incompleteness and partial identification, which we call Composition Theorem. We apply this methodology to the construction of confidence regions with partially identified models of general form. The region is obtained by...

We propose a model of seasonal gas markets which is flexible enough to include supply and demand shocks while also considering natural gas as an exhaustible resource. Using US data, we estimate the model’s structural parameters and test economically founded restrictions. We analyze,...

We consider the problem of the visualization of life courses represented as sequences. We describe the state of the art and introduce new plots which improve the graphical display of sequences unveiling their most salient features. Our proposal is based upon the application of smoothing...

In this article, we extend the propensity score method by matching on multiple groups. Using data from first wave (1987–1988) and third wave (2001–2003) of National Survey of Families and Households (NSFH), we match married individuals with no premarital cohabitation, single...

Qualitative mismatches arise when the qualifications or skills of workers, individually or in the aggregate, are different from the qualifications or skills required or specified for their jobs. This review provides an introduction to the subject as well as a survey for social scientists...