References of "Perelman, Sergio"
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See detailMicro-simulation of Social Security reforms in Belgium
Jousten, Alain ULg; Desmet, R.; Perelman, Sergio ULg et al

in Gruber, J.; Wise, D. (Eds.) Social Security Programs and Retirement around the World: Fiscal Implications of Reform (2007)

The present paper analyzes the budgetary impact of various Social Security reforms in the Belgian institutional setting. Our approach relies on parameters that were derived in Dellis et alii (2002) using ... [more ▼]

The present paper analyzes the budgetary impact of various Social Security reforms in the Belgian institutional setting. Our approach relies on parameters that were derived in Dellis et alii (2002) using a micro-modeling strategy. Focusing our attention on a hypothetical age cohort, we illustrate the budgetary impact that the reforms considered might have on the budget of the federal government. [less ▲]

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See detailAn Ageing Burden Indicator
Lefebvre, Mathieu ULg; Perelman, Sergio ULg

in Marin, B.; Zaidi, A. (Eds.) Mainstreaming Ageing. Indicators to Monitor Sustainable Policies (2007)

In this chapter we propose a simple framework to compute a burden indicator to be used in the ageing sustainability debate. Relying on the projections of population as well as on the employment rate and ... [more ▼]

In this chapter we propose a simple framework to compute a burden indicator to be used in the ageing sustainability debate. Relying on the projections of population as well as on the employment rate and the generosity of the systems, it offers the possibility to anticipate the main reforms to be accomplished in order to share the burden of the pay-as-you-go schemes between generations [less ▲]

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See detailDéveloppement d'un indicateur portant sur l'évolution du travail au noir en Belgique
Pacolet, Jozef; Pestieau, Pierre ULg; Baeyens, Katleen et al

Report (2007)

La mission du CREPP était de présenter une synthèse des travaux portant sur la mesure du travail au noir en général et en Belgique en particulier. Elle était aussi de suggérer des pistes concrètes ... [more ▼]

La mission du CREPP était de présenter une synthèse des travaux portant sur la mesure du travail au noir en général et en Belgique en particulier. Elle était aussi de suggérer des pistes concrètes permettant de mieux appréhender la réalité du travail au noir et les moyens de lutter contre lui. Dans le texte ci-dessous on trouvera la synthèse des études existantes qui conclut que la plupart des estimations macroéconomiques sont discutables, voire fan¬taisistes. Notre conviction est que l’approche macroéconomique est stérile. L’approche correcte est sectorielle et elle devrait s’appuyer sur deux types de données: les données administratives et les données d’enquêtes portant sur tous les acteurs: offreurs, demandeurs et autorités de contrôle. [less ▲]

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See detailExploring the synergy between promoting active participation in work and in society and social, health and long-term care strategies
Grammenos, S.; Atta, C.; Pestieau, Pierre ULg et al

Report (2007)

The purpose of this study is to provide information that can help the Commission and EU Member States engage in policy discussion on how social, health and long-term care systems can help enhance ... [more ▼]

The purpose of this study is to provide information that can help the Commission and EU Member States engage in policy discussion on how social, health and long-term care systems can help enhance participation in work and family, social and community activities and how, in turn, participation in paid employment, family, social and community activities can contribute to healthy and autonomous living at present and in the future. Part I presents a review of the literature on the synergy between health and activity/work. Health affects work and social participation but on the other side work and activity affect health. We focus on people aged 55 and over as this interrelation (double causality) seems to be significant for important life events (retirement decision, social participation, etc.) of this age group. Part II presents a quantitative analysis and tries to identify national specificities. It presents the lessons which we can draw from European surveys. It presents a quantitative analysis based on the LFS, the EU-SILC, the ECHP UDB and SHARE surveys. The fourth step summarises national policies and gives a comparative analysis, while the fifth step presents the best practices. Finally, the last part summarises the main conclusions and the policy implications. [less ▲]

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See detailRetraite, activités non professionnelles et vieillissement cognitif. Une exploration à partir des données de Share
Adam, Stéphane ULg; Bonsang, Eric; Germain, Sophie et al

in Economie et Statistique (2007), (403-404), 83-96

Une approche en termes de frontières d’effi cacité peut être utilisée pour étudier les relations entre les fonctions cognitives des personnes âgées de plus de 50 ans en Europe d’une part, et différents ... [more ▼]

Une approche en termes de frontières d’effi cacité peut être utilisée pour étudier les relations entre les fonctions cognitives des personnes âgées de plus de 50 ans en Europe d’une part, et différents facteurs, plus particulièrement l’âge, l’éducation et l’exercice d’activités, professionnelles ou non, d’autre part. Le but est de construire une « frontière » correspondant au fonctionnement cognitif optimal que chacun des individus est censé atteindre étant donné son âge et son niveau d’éducation. À cette fi n, nous utilisons des données individuelles collectées durant la première vague de l’enquête internationale et interdisciplinaire Share de 2004, laquelle contient le résultat de tests cognitifs réalisés auprès de plus de 22 000 individus âgés, ainsi que des informations sur leur état de santé, mentale et physique, leur situation socio-économique, leur entourage familial, l’exercice d’activités professionnelles ou non professionnelles, l’isolement social et les performances cognitives individuelles mesurées à l’aide de tests. En plus du rôle fondamental joué par l’éducation face au vieillissement cognitif, le fait de rester en activité, ainsi que la pratique d’une activité non professionnelle ou d’activités physiques, vigoureuses ou modérées, sont positivement associés à la constitution des « réserves cognitives » individuelles. La mise à disposition des données des vagues successives de Share , prévues tous les deux ans auprès des mêmes individus, pourrait permettre de déterminer les liens de causalité subjacents. [less ▲]

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See detailInfrastructure Reform in Developing Economies: Evidence from a Survey of Economic Performance Measures
Estache, Antonio; Perelman, Sergio ULg; Trujillo, Lourdes

in Coelli, Tim; Lawrence, Denis (Eds.) Performance Measurement and Regulation of Network Utilities (2007)

This paper surveys the growing literature on developing countries’ infrastructure performance measured through frontier analysis techniques. The focus is generally on assessments of operators’ efficiency ... [more ▼]

This paper surveys the growing literature on developing countries’ infrastructure performance measured through frontier analysis techniques. The focus is generally on assessments of operators’ efficiency and productivity growth as part of benchmarking exercises. Two broad types of benchmarks are identified in the literature. The first is based on cross-country or cross regional performance comparisons, the second compares performance before and after reforms, including privatization. These benchmarks are often used to assess the impact of potential or actual policy reforms in specific countries. In a growing number of instances, they are also being conducted in the context of tariff revisions to assess the efficiency gains that can be shared with users as part of these revisions. The main policy conclusions are that there is a difference in the performance effect of key reforms, in particular privatization, between the transport sector and the utilities sector but that generally incentive based regulation delivers efficiency in both sectors The main technical conclusion is that even if in developing economies data problems are constraining, these constraints are not as binding as often argued. [less ▲]

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See detailTechnical efficiency in airlines under regulated and deregulated environments
Barla, Philippe; Perelman, Sergio ULg

in Annals of Public and Cooperative Economics = Annales de l'Economie Publique, Sociale et Coopérative (2007), 60

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See detailMeasuring Quantity-Quality Trade-Offs in Regulation: the Brazilian Freight Railways Case
Estache, Antonio; Perelman, Sergio ULg; Trujillo, Lourdes

in Annals of Public and Cooperative Economics = Annales de l'Economie Publique, Sociale et Coopérative (2007), 78(1), 1-20

The quantity vs. quality trade-offs in network industries are well known from the theoretical literature and have been the subject of many empirical assessments, although mostly for the telecoms and ... [more ▼]

The quantity vs. quality trade-offs in network industries are well known from the theoretical literature and have been the subject of many empirical assessments, although mostly for the telecoms and energy sectors. The purpose of this paper is to expand the evidence for the railway sector by documenting the importance of this trade-off in the context of the Brazilian freight railway industry reform, the first example of a railway sector in which tariff revisions are subject to joint output and quality performance indicators. The analysis is based on the calculation of the Malmquist productivity index proposed by Fare et al. (1995). The decomposable nature of this total factor productivity (TFP) index reveals the prevalence of quantity-quality trade-offs up to the end of the reform period, but a positive correlation between them during the period just afterwards. This type of information would certainly be useful for regulation purposes, particularly as an alternative way of taking into account quality without introducing complex, and very often ineffective, penalty schemes. [less ▲]

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See detailRetirement and cognitive reserve: a stochastic frontier approach applied to survey data
Adam, Stéphane ULg; Bonsang, Eric; Germain, Sophie ULg et al

Report (2007)

This paper proposes the use of the stochastic frontier approach to analyse the relationship between cognitive performance, retirement and non-professional activities of the 50+ individuals using data from ... [more ▼]

This paper proposes the use of the stochastic frontier approach to analyse the relationship between cognitive performance, retirement and non-professional activities of the 50+ individuals using data from three surveys conducted in Europe (the Survey on Health, Ageing and Retirement in Europe and the English Longitudinal Survey on Ageing) and United States (the Health and Retirement Study). Next to the strong relationship between cognitive performance, age and education, this study highlights the negative effect of retirement and the positive impact of non-professional activities and social contacts. [less ▲]

Detailed reference viewed: 63 (11 ULg)
See detailOccupational activities and cognitive reserve: A frontier approach applied to SHARE
Adam, Stéphane ULg; Bay, C.; Bonsang, Eric et al

Scientific conference (2006, March)

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See detailLitterature review on the redistributive effects of pension systems
Grammenos, S.; Lefèbvre, Mathieu; Pestieau, Pierre ULg et al

Report (2006)

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See detailOccupational Activities and Cognitive Reserve: a Frontier Approach Applied to the Survey on Health, Ageing, and Retirement in Europe (SHARE)
Adam, Stéphane ULg; Bonsang, Eric; Germain, Sophie ULg et al

Report (2006)

The aim of this paper was to use a parametric stochastic frontier approach (coming from the economic literature) to explore the impact of the concept of activity (taken in a broad sense: i.e., including ... [more ▼]

The aim of this paper was to use a parametric stochastic frontier approach (coming from the economic literature) to explore the impact of the concept of activity (taken in a broad sense: i.e., including both professional and non-professional activities) on the constitution and the care of cognitive reserve among the European population aged 50 and up. For this purpose, we use individual data collected during the first wave of SHARE (Survey on Health, Ageing and Retirement in Europe) performed in 2004. The advantages of this survey were (1) it included a large population (n = 18,623) geographically distributed throughout Europe; and (2) it simultaneously analyzed several dimensions (physical and mental health, mobility, occupational activities, socioeconomic status, etc.). Our results confirm the positive impact of occupational activities on the cognitive functioning of elderly people. These results are discussed in terms of the prevention of cognitive aging and Alzheimer’s disease, and more particularly of retirement policy issues. [less ▲]

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See detailEarly retirement, activities after retirement and the cognitive reserve
Adam, Stéphane ULg; Bay, Christelle; Perelman, Sergio ULg

Conference (2005, September 26)

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See detailRaising the age of retirement: an example of political ratchet effect
Lefebvre, Mathieu ULg; Pestieau, Pierre ULg; Vidal, Jean-Pierre et al

Report (2005)

Political resistance to a progressive increase in the retirement age is widespread in a number of European countries. We present a simple model explaining why such a reform can be opposed even when it is ... [more ▼]

Political resistance to a progressive increase in the retirement age is widespread in a number of European countries. We present a simple model explaining why such a reform can be opposed even when it is profitable to a majority of citizens. Then, we try to explain the existence of wide differences in the average length of retirement across countries and over time. [less ▲]

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See detailSocial Security in Belgium: Distributive Outcomes
Jousten, Alain ULg; Lefebvre, Mathieu ULg; Pestieau, Pierre ULg et al

Report (2005)

The paper analyzes the link between old-age income programs and economic outcomes in Belgium. We use a simulation methodology to construct an average pension generosity variable. Our regression analysis ... [more ▼]

The paper analyzes the link between old-age income programs and economic outcomes in Belgium. We use a simulation methodology to construct an average pension generosity variable. Our regression analysis explores the link with distributional outcomes in income, consumption and more subjective indicators. Results document the weak link between average generosity and distributional outcomes across a heterogeneous population. [less ▲]

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See detailThe benefits of separating early retirees from the unemployed: simulation results for Belgian wage earners
Desmet, Raphaël; Jousten, Alain ULg; Perelman, Sergio ULg

Report (2005)

The pool of early retirees is characterized by a large heterogeneity along several criteria. The present paper focuses on the key distinction between those in forced early retirement and those who retire ... [more ▼]

The pool of early retirees is characterized by a large heterogeneity along several criteria. The present paper focuses on the key distinction between those in forced early retirement and those who retire early by individual choice. We start by estimating a retirement probit model for older workers in Belgium. Based on these estimates, we then perform micro-simulations relating to a hypothetical actuarial reform of a pension system, i.e., a reform imposing on average actuarial neutrality with respect to the time of retirement. We explore two scenarios, one where the entire population is subjected to the actuarial system, and one where a duly screened sub-sample of the unemployed is shielded against these actuarial adjustment factors, a group we call the truly unemployed. We evaluate the impact on the average retirement age, the pension budgets as well as indicators of redistribution within the group of the elderly. We find that the extra budgetary gain of exposing this subgroup to the full-blown reform is modest, while the distributional cost is rather high. Our results thus comfort the idea that the budgetary cost of a focused unemployment system are moderate, and that returning the unemployment insurance to its primary role might be a desirable strategy. [less ▲]

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See detailProduct Specialization, Efficiency and Productivity Change in the Spanish Insurance Industry
Fuentes, Hugo; Griffel-Tatjé, Emili; Perelman, Sergio ULg

Report (2005)

In this paper we analyze the levels of technical efficiency and productivity growth attained by Spanish insurance companies during a period of deregulation. We compute Malmquist productivity indexes using ... [more ▼]

In this paper we analyze the levels of technical efficiency and productivity growth attained by Spanish insurance companies during a period of deregulation. We compute Malmquist productivity indexes using the estimates of parametric distance function for several specialized insurance branches. In this way, we show that branch specialization matters a great deal and that firms combining two or three product lines (Health, Property-Liabilities and Life) perform better than firms operating in one insurance line exclusively. In the light of these results, we recommend that the remaining restrictions coming from the European Third Directives on the operations of multi-branch firms should be removed. Moreover, from a management point of view, it would be appropriate to encourage the creation of multi-branch insurance firms. However, in all cases, the estimated scores indicate low productivity growth (less than 2% per year) compared with a huge increase in insurance activity (premiums were multiplied by nearly 3 in a decade) [less ▲]

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See detailFaut-il un ou plusieurs indicateurs d'exclusion sociale?
Lefebvre, Mathieu ULg; Perelman, Sergio ULg; Pestieau, Pierre ULg

in Revue Belge de Sécurité Sociale (2005), (1), 59-76

Detailed reference viewed: 22 (8 ULg)
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See detailPourquoi SHARE?
Perelman, Sergio ULg; Pestieau, Pierre ULg

in 16ème Congrès des Economistes Belges de Langue Française, Commission 2, CIFOP (2005)

SHARE, l’acronyme de Survey on Health, Ageing and Retirement in Europe, est sans nul doute une des plus grandes enquêtes jamais réalisées au niveau européen. Elle s'adresse à la population de 50 ans et ... [more ▼]

SHARE, l’acronyme de Survey on Health, Ageing and Retirement in Europe, est sans nul doute une des plus grandes enquêtes jamais réalisées au niveau européen. Elle s'adresse à la population de 50 ans et plus, et a l'originalité d'être internationale, multidisciplinaire et longitudinale. Ces caractéristiques font de SHARE l'instrument indispensable pour mieux comprendre la réalité du vieillissement, ses implications sociales et économiques. Il devrait à terme permettre développer des politiques économiques à la fois plus efficaces et équitables tant à l’échelon national qu’européen. [less ▲]

Detailed reference viewed: 135 (20 ULg)