{"title":"Le passage à une économie de service : des gains économiques et environnementaux?","authors":"Julie Racicot, Paul Lanoie, Sylvain Plouffe","doi":"10.7202/1058594AR","DOIUrl":"https://doi.org/10.7202/1058594AR","url":null,"abstract":"Le passage à une économie de service pourrait contribuer à réduire considérablement les impacts environnementaux reliés à nos activités. Pour que le potentiel de réduction des systèmes produit-service (SPS) se concrétise, il faut que ces modèles d’affaires soient rentables pour les entreprises, que les usagers y trouvent leur compte et que les SPS soient moins polluants que les produits qu’ils remplacent. Au niveau économique, plusieurs exemples montrent que les SPS sont avantageux pour les producteurs qui peuvent, à travers ces modèles, augmenter leur chiffre d’affaires, profiter d’une stabilisation des revenus et augmenter leurs profits. Pour les consommateurs, les SPS, qui remettent entre les mains des producteurs toutes les notions d’achat, de gestion, d’entretien et de réparation, sont souvent moins chers et mieux adaptés que les produits qu’ils remplacent. Au niveau environnemental, par contre, bien que plusieurs gains encourageants soient observés, le bilan global reste extrêmement difficile à réaliser. Les offres de SPS sont très variées et chaque contexte nécessiterait une analyse des impacts directs et indirects qui est unique. L’objectif de cet article sera donc de faire le point sur l’économie de service en couvrant principalement trois aspects : 1) la rentabilité de l’économie de service pour les entreprises impliquées; 2) sa rentabilité pour les clients et 3) les impacts environnementaux de l’économie de service. De plus, l’article fera ressortir les catégories d’entreprises les plus susceptibles de profiter des SPS.","PeriodicalId":405226,"journal":{"name":"L'Actualité économique","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131928220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"VALORISATION DES INVESTISSEMENTS ULTRA-LONGS ET DÉVELOPPEMENT DURABLE","authors":"C. Gollier","doi":"10.7202/1040502AR","DOIUrl":"https://doi.org/10.7202/1040502AR","url":null,"abstract":"Do we do enough for the future? This question is related to many different current issues, from the reduction of sovereign debt in Europe, to the pension reform, the fight against climate change, the preservation of natural resources, the level of public investment in infrastructure, or the fiscal treatment of long-term savings for example. Our social responsibility towards future generations is decentralized through the choice of the discount rate, which determines the tradeoff between present sacrifices and future benefits. How should we define the efficient level of long-termism? In this paper, I summarize the most important evolutions in the economic analysis of this question in recent years. Given the strong uncertainties that prevail concerning the long term evolution of our society, I recommend to use a discount rate ranging from 2 times the anticipated growth rate of consumption for short time horizons, going down to 1 % for time horizons above 100 years. The systematic risk premium should also have a term structure, starting at around 1 % for short maturities to 3 % for extra-long ones. Resume – En faisons-nous assez pour les generations futures? Cette question est sous-jacente a de nombreuses questions economiques actuelles, comme celles de la reduction de la dette, de la reforme des retraites, de la lutte contre le changement climatique, de la preservation des ressources naturelles, des investissements d’infrastructure ou de la fiscalite de l’epargne par exemple. Notre responsabilite sociale envers les generations futures se traduit en termes economiques par le taux d’actualisation, qui donne une valeur au futur relativement au present, et qui determine l’arbitrage present/futur des agents economiques. Si on reconnait qu’une societe court-termiste utilise un taux d’actualisation trop eleve, comment determiner le niveau desirable de ce taux? Dans cet article, je synthetise les importants developpements scientifiques recents sur ce sujet. Etant donne la baisse tendancielle de nos anticipations de croissance et les fortes incertitudes sur les evolutions longues de notre societe, je recommande un taux sans risque de deux fois le taux de croissance anticipe de la consommation (pour actualiser des cash flows engendres sur les horizons inferieurs a 20 ans) a 1 % (pour des maturites au-dela de 100 ans). La prime de risque devrait aussi avoir une structure par terme, s’etalant de 1 % a court terme jusqu'a 3 % pour le long terme.","PeriodicalId":405226,"journal":{"name":"L'Actualité économique","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117233157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"WILD CLUSTER BOOTSTRAP CONFIDENCE INTERVALS","authors":"J. MacKinnon","doi":"10.7202/1036912AR","DOIUrl":"https://doi.org/10.7202/1036912AR","url":null,"abstract":"Confidence intervals based on cluster-robust covariance matrices can be constructed in many ways. In addition to conventional intervals obtained by inverting Wald (t) tests, the paper studies intervals obtained by inverting LM tests, studentized bootstrap intervals based on the wild cluster bootstrap, and restricted bootstrap intervals obtained by inverting bootstrap Wald and LM tests. It also studies the choice of an auxiliary distribution for the wild bootstrap, a modified covariance matrix based on transforming the residuals that was proposed some years ago, and new wild bootstrap procedures based on the same idea. Some procedures perform extraordinarily well even with the number of clusters is small.","PeriodicalId":405226,"journal":{"name":"L'Actualité économique","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123692344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"LES DÉTERMINANTS DE LA TRANSITION VERS L’EMPLOI STABLE DANS LES SERVICES À LA\u0000 PERSONNE","authors":"M. Diaye, S. Younes","doi":"10.7202/1076384ar","DOIUrl":"https://doi.org/10.7202/1076384ar","url":null,"abstract":"Household services in France are characterized by involuntary part-timr jobd (even in permanent contracts), fixed-term contracts and multi-activity. The situation of these employees therefore does not obey a simple dual structure where permanent contracts (CDI) oppose short-term contracts. This structure may explain why, while this sector is a provider of large and growing number of jobs, employers struggles to recuit personnel. Our contribution is twofold: first, we shed light on the determinants of employee mobility services to towards either stable employment or to precarity for those initially hired on temporary contracts; second, we analyze the trajectories of these employees in the labor market. We estimate a proportional hazard model (Cox model) on the French Labor Force Survey (2003-2011), which provides detailed information on these employees' transitions.","PeriodicalId":405226,"journal":{"name":"L'Actualité économique","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122991342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}