A general model of family income distribution: Chicago and Cambridge reconciled

In the first part of the present study it is shown that the theories of personal income distribution developed in the past one hundred years are partial and incomplete even when integrated. Because they stop short of offering a promise of a general distribution theory, the second part of the study proposes a general scheme anchored upon an all-inclusive concept of both human and material capital. Prevailing inheritance models are evaluated in the third part of this study, while the basic model appears in the fourth. It is a theoretical model but is rooted in an actual economy, namely, Brazil. An emperical application of the model is given in the final section. Since income distribution involves social welfare, the study ends with a dynamic policy analysis in which optimal time paths of changes in different policy instruments are computed for the attainment of planned redistribution goals during specified time periods.     

A class of neutral to the right priors induced by superposition of beta processes

A random distribution function on the positive real line which belongs to the class of neutral to the right priors is defined. It corresponds to the superposition of independent beta processes at the cumulative hazard level. The definition is constructive and starts with a discrete time process with random probability masses obtained from suitably defined products of independent beta random variables. The continuous time version is derived as the corresponding infinitesimal weak limit and is described in terms of completely random measures. It takes the interpretation of the survival distribution resulting from independent competing failure times. We discuss prior specification and illustrate posterior inference on a real data example.     

Complementary Resources, Appropriability and Vertical Interfirm Relations in the Italian Movie Industry

Resource-based view research plays a prominent role in strategic management studies. In this paper we investigate the relativistic interpretation of the 'scarcity' concept, the appropriability of complementary resources, the measurability of the contribution that a specific resource brings to the overall value of the firm. The theoretical issues have been made context specific trying to show (a) how a not-scarce complementary resource like movie theatres can help build value for the distributor, mainly through the creation of reputation for the subsequent TV broadcasting; (b) that this resource can be appropriated from different companies; (c) that companies can develop different kinds of interfirm relationships in order to control complementary resources; (d) that reliable and valid parameters can be provided to measure the value of resources and the related degree of control from the distributors. Supporting empirical evidence is provided and implications for managing complementary resources are discussed.     

Occupational mobility and wealth evolution in a model of educational investment with credit market imperfections

We study the implications of individual heterogeneity for occupational mobility and the evolution of wealth distribution. These issues are investigated within a model of occupational choice with credit market imperfections and local non convexities in educational investment. Whether and under which conditions private wealth accumulation leads to the elimination of the effects of credit market imperfections is also studied. In the cases where steady states feature wealth and occupational mobility we show that private wealth accumulation cannot eliminate the effects of credit market imperfections if, at any point in time, investment correlates with wealth within households in the skilled occupation. Persistence of wealth constraints in the economy with occupational mobility motivates our exploration of policies. Compared to the case of homogeneous ability, we show that heterogeneity requires more persistent policies to achieve similar results in terms of enhanced investment opportunities and income per capita. It is also shown that the scope for policies is larger under heterogeneity: policies can be effective in environments where they would fail in a world of homogeneous abilities.     

Governing Local Area Development through Dynamic Performance Management

Public Organization Review - Several attempts of local areas development fail due to a predominant attention to the internal performance of public organizations. The perspective of local area...     

Population dynamics and life-cycle consumption

This paper presents a model where aggregate consumption depends on both the level of wealth and the age structure of population. The explicit consideration of an endogenous rate of time preference permits to analyze the important role of population ageing as a determinant of aggregate saving. Received: 23 October 2001/Accepted: 13 February 2002 I would like to thank an anonymous referee for his comments. Financial support from CNR and MURST is gratefully acknowledged. Responsible editor: Alessandro Cigno.     

Impact of Adolescents' Filial Self‐Efficacy on Quality of Family Functioning and Satisfaction

In this prospective study, we tested a structural model in which adolescents' perceived self‐efficacy to manage parental relationships affected their satisfaction with family life both directly, and indirectly, through its impact on family practices. Findings based on 380 Italian adolescents showed that perceived filial self‐efficacy was linked directly and indirectly to satisfaction with family life, and that these relations held both concurrently and longitudinally. In particular, the greater adolescents perceived their self‐efficacy, the more they reported open communication with their parents, the more accepting they were of their parents' monitoring of their own activities outside the home and the less inclined they were to get into escalative discord over disagreements. Regardless of whether perceived filial self‐efficacy was placed in the conceptual structure as a contributor to the quality of family interactions or as a partial product of family functioning, it consistently predicted satisfaction with family life.     

The Gini concentration test for survival data

We apply the well known Gini index to the measurement of concentration in survival times within groups of patients, and as a way to compare the distribution of survival times across groups of patients in clinical studies. In particular, we propose an estimator of a restricted version of the index from right censored data. We derive the asymptotic distribution of the resulting Gini statistic, and construct an estimator for its asymptotic variance. We use these results to propose a novel test for differences in the heterogeneity of survival distributions, which may suggest the presence of a differential treatment effect for some groups of patients. We focus in particular on traditional and generalized cure rate models, i.e., mixture models with a distribution of the lifetimes of the cured patients that is either degenerate at infinity or has a density. Results from a simulation study suggest that the Gini index is useful in some situations, and that it should be considered together with existing tests (in particular, the Log-rank, Wilcoxon, and Gray–Tsiatis tests). Use of the test is illustrated on the classic data arising from the Eastern Cooperative Oncology Group melanoma clinical trial E1690.