We explore in this paper the design of optimal share contracts when there is a double moral hazard, one on inputs exclusively provided by the agent (such as effort) and the other in reporting the level of output to be shared with the principal, and when there is a social efficiency cost to under-reporting. The optimal contract is second best in that it allows for residual moral hazard in both e...

A fundamental observation in the social and behavioral sciences is that people change over time, but not necessarily in the same way or at the same rate. For example, verbal ability increases steadily throughout the elementary school years, but it does not increase at the same rate for all students. There are individual differences in the rate and direction of change in many contexts, and these...

doi: 10.3969/j.issn.1002-0829.2012.06.009 Division of Biostatistics, Thomas Jefferson University, Philadelphia, Pennsylvania, USA *Correspondence: [email protected] Psychiatric studies often collect longitudinal data to characterize the natural history of disease in a cohort or to evaluate the effect of behavioral or pharmaceutical interventions. For example, in a recent partially ra...

Learning and development are ubiquitous. When new skills are acquired, when attitudes and interests develop, people change. Measuring change demands a longitudinal perspective, with multiple waves of data collected on representative people at sensibly spaced intervals. Multi-wave data is usually analyzed by individual growth modeling using a multilevel model for change (Singer & Willett, 2003)....

the objective of this study was to estimate variance components and genetic parameters for growth curve parameters in shall sheep. studied traits were parameters of brody growth model which included a (asymptotic mature weight), b (initial animal weight) and k (maturation rate). the data set and pedigree information used in this study were obtained from the animal breeding center of iran and co...

How much fiscal space do Latin American countries have to increase their tax burdens in the long term? This paper provides an answer through Laffer curves estimates for taxes on labor, capital, and consumption six largest emerging economies of region: Argentina, Brazil, Chile, Colombia, Mexico, Peru. Estimates are made using a neoclassical growth model with second-generation human capital emplo...

Para Ecuador las recaudaciones tributarias desempeñan un rol preponderante dentro del financiamiento Estado, debido a que dichos ingresos permiten sostener el gasto público gubernamental. Durante los últimos años reformas se han encaminado aumentar la carga tributaria con finalidad de impositivos, sin embargo, incremento impuestos según teoría, no necesariamente permite obtener resultados posit...

We re-examine the destabilizing role of balanced-budget fiscal policy rules based on consumption taxation. Using a one-sector model with infinitely-lived households, we consider a specification of preferences derived from Jaimovich (2008) [14] and Jaimovich and Rebelo (2009) [15] which is flexible enough to encompass varying degrees of income effect. When the income effect is not too large, we ...