We show that the main nonparametric identification finding of Abbring and Van den Berg (2003b, Econometrica) for the effect of a timing-chosen treatment on an event duration of interest does not hold. The main problem is that the identification is based on the competing-risks identification...

Breakthroughs and backlashes have marked progress in the development and diffusion of Artificial Intelligence (AI). These shocks make the investment in developing an Artificial General Intelligence (AGI) subject to considerable uncertainty. This paper applies a real options model, extended to...

Understanding the exact connection between inequality and justice is important because justice is classically regarded as the first line of defense against self-interest and inequality. Absent a strong and clear link between inequality and justice, the sense of justice would not awaken to exert...

This paper develops the mathematical foundations of comparison, referential, and relative (CRR) processes. The key ingredients are: (1) three kinds of terms; and (2) two kinds of relations. Combining the three terms - absolute amount, relative amount, and relative rank - with the two kinds of...

It is shown that any completely preordered topological real algebra admits a continuous utility representation which is an algebra-homomorphism (i.e., it is linear and multiplicative). As an application of this result, we provide an algebraic characterization of the projective (dictatorial)...

We present a structural framework for the evaluation of public policies intended to increasejob search intensity. Most of the literature defines search intensity as a scalar that influencesthe arrival rate of job offers; here we treat it as the number of job applications that workerssend out....

We use a new and exceptionally rich administrative data set for Germany to evaluate theemployment effects of a variety of public sponsored training programs in the early 2000s.Building on the work of Sianesi (2003, 2004), we employ propensity score matching methodsin a dynamic, multiple...

Based on a sequence of reforms in the Norwegian unemployment insurance (UI) system, weshow that activity-oriented UI regimes – i.e., regimes with a high likelihood of requiredparticipation in active labor market programs, duration limitations on unconditional UIentitlements, and high sanction...

Turning unemployment into self-employment has become a major focus of German activelabour market policy (ALMP) in recent years. If effective, this would not only reduceGermany’s persistently high unemployment rate, but also increase its notoriously low selfemploymentrate. Empirical evidence on...

In light of nonstationary search theory (van den Berg, 1990), this paper estimates the effectsof benefit entitlement periods and the size of unemployment benefits on unemploymentdurations and post-unemployment earnings in West Germany...