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71.
Giacomo Nebbia Lisa Nussbaum Annie Helmkamp Stacy Andersen Thomas Perls 《North American actuarial journal : NAAJ》2013,17(4):591-599
A large portion of the baby boomer population will live beyond the age of 90 years, and entitlement programs and various insurance products have thus become interested in longevity risk. Beyond cohort life table predictions, actuaries have little to go on in determining which individuals or portions of populations are at increased risk of living to 90 or 100 or even older. We and others have noted strong familial risk for living beyond the oldest one percentile of survival, and we developed an algorithm that uses information about relatives’ longevity to compute the chance of an individual surviving to extreme old age. An important step of this work is to compile large samples of pedigrees with and without long-lived family members. Here we describe our process of hand curation of centenarian pedigrees and software that we have developed for the automated construction of such pedigrees using internet-based resources that can support the manual process. 相似文献
72.
This paper considers dynamic games in which multiple principals contract sequentially and non-cooperatively with the same agent. We first show that when contracting is private, i.e. when downstream principals do not observe the mechanisms offered upstream and the decisions taken in these mechanisms, all PBE outcomes can be characterized through pure-strategy profiles in which the principals offer menus of contracts and delegate to the agent the choice of the contractual terms. We then show that, in most cases of interest for applications, the characterization of the equilibrium outcomes is further facilitated by the fact that the principals can be restricted to offer incentive-compatible extended direct mechanisms in which the agent reports the endogenous payoff-relevant decisions contracted upstream in addition to his exogenous private information. Finally we show how the aforementioned results must be adjusted to accommodate alternative assumptions about the observability of upstream histories and/or the timing of contracting examined in the literature. 相似文献
73.
Giacomo Calzolari Vincenzo Denicol 《International Journal of Industrial Organization》2011,29(3):337-341
We analyze the competitive effects of quantity discounts in an asymmetric duopoly. We find that for a sizeable set of parameter values, quantity discounts harm the smaller firm and reduce consumers' surplus. They can even decrease social welfare, i.e. the sum of producers' and consumers' surpluses. However, the circumstances in which quantity discounts may decrease social welfare are limited and difficult to identify in practice. 相似文献
74.
Giacomo De Giorgi 《Fiscal Studies》2005,26(3):371-383
The New Deal for Young People is the major welfare‐to‐work programme in the UK. It is a mandatory multistage policy targeted at 18‐ to 24‐year‐old unemployed people. This paper investigates the long‐term effectiveness of the programme in terms of enhancing the (re‐)employment probability of participating men. It exploits the eligibility rule to identify a suitable counterfactual relying upon a simple regression discontinuity design. The combination of job‐search assistance, training, wage subsidies and job experience enhances employability by about 4.6 per cent and this effect lasts over different cohorts. 相似文献
75.
Giacomo Bonanno 《Economic Notes》2002,31(1):175-178
76.
We performed a systematic literature review to explore and understand how the 23-year long debate about dynamic capabilities has addressed sustainability issues. Based on this, we propose a unifying framework that distinguishes different facets of dynamic capabilities for sustainability (DCsS) based on the different types of performance they are more suitable to predict. The theoretical contribution is twofold. First, we add to the literature by highlighting the dependence of different forms of DCsS on different levels of the centrality of sustainability outcomes in corporate strategies. Second, we shed light on the operationalizations of DCsS by providing guidance on the adoption of pertinent constructs and measurement models. The review concludes with a discussion of the managerial implications of the proposed conceptual framework to help decision makers better understand, which strategic moves to make to achieve their intended sustainability goals. 相似文献
77.
Alain Decrop Giacomo Del Chiappa Jérôme Mallargé Pietro Zidda 《Journal of Travel & Tourism Marketing》2018,35(1):57-72
ABSTRACTPresented as an alternative form of tourism, Couchsurfing is a predominantly non-commercial accommodation type where hosts offer a “couch” to travelers through a hospitality network. Couchsurfing.com is considered as an icon of the sharing economy and more specifically of shareable tourism. This article provides a deeper understanding of couchsurfers’ motivations and shared values. Through an empirical qualitative study, we discuss the transformative power of Couchsurfing experiences, the underlying transformational processes, conditions, and socio-psychological and behavioral consequences. We also discuss the findings’ implications for society, businesses, and tourism in general. 相似文献
78.
Utilizing a conjoint analysis approach, this study aims to examine the relative importance of external information sources for female and male international and domestic travelers utilizing data collected from 719 tourists traveling to Sardinia (Italy). Overall, findings reveal that traditional word-of-mouth (i.e. family and friends), online review sites (e.g. TripAdvisor), and the online search engines are the most important external information sources for both domestic and international travelers. However, differences in importance tourists assign to each external source exist based on type of travel (domestic versus international) and gender (male versus female). For example, while traditional word-of-mouth, online review sites, and search engines are the three most important sources for domestic male travelers, the third most important information source for domestic female travelers is found to be printed tour guides. Contributions to the current body of knowledge and managerial implications are discussed, and suggestions for further research are provided. 相似文献
79.
This paper evaluates the welfare effects of the 1986 Tax Reform Act (TRA86). We rely on different welfare metrics, which fully retain preference heterogeneity and are based on different ethical priors. We estimate utility functions with preference heterogeneity on the basis of structural models of family labor supply. Then, using these estimated preferences, we compute and compare different well-being rankings corresponding to different ways of measuring well-being. Finally, we identify the losers and the winners of TRA86, in absolute and relative terms, for each of the welfare metrics. 相似文献
80.
Pellegrini Massimiliano M. Rialti Riccardo Marzi Giacomo Caputo Andrea 《The International Entrepreneurship and Management Journal》2020,16(3):795-826
International Entrepreneurship and Management Journal - Sport entrepreneurship is progressively emerging as an extremely significant stream of research. Accordingly, scholars are increasingly... 相似文献