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41.
We study the effect of social capital in an environment in which formal, marketed insurance contracts coexist with informal agreements. We show that in the absence of peer monitoring and social pressure, non‐marketed contracts crowd out formal ones due to moral hazard. We prove, by means of an equilibrium concept typical of the network literature, that social capital can reduce moral hazard in informal agreements. We then show that under certain conditions, social capital increases the demand for marketed insurance contracts. The theoretical model we outline provides us clear guidance to measure social capital in a provincial‐level data set. The empirical model, which is estimated controlling for panel and spatial structure, supports our claim that social capital increases the demand for non‐life insurance. 相似文献
42.
Export restraints in a model of trade with capital accumulation 总被引:1,自引:0,他引:1
This paper examines the impact of voluntary export restraints (VERs) in an international duopoly modeled as a differential game. With a Ramsey capital accumulation dynamics, the game admits multiple steady states, and a VER cannot be ‘voluntarily’ employed by the foreign firm in case of Cournot behavior in demand substitutes. Hence, the dynamic framework confirms the results of the VERs literature with static interaction in output levels. In the case of price behavior, the adoption of an export restraint may increase the profits of both firms if products are substitutes and the steady state is ‘market-driven’. However, contrary to the acquired wisdom based upon the static approach, the dynamic analysis also admits an equilibrium outcome, identified by the Ramsey golden rule, where the incentive to adopt a VER is ruled out, irrespective of whether firms are quantity- or price-setters. 相似文献
43.
Can the story of evolving Federal Reserve beliefs in The Conquest of American Inflation simultaneously explain the Great Inflation and the forecasts published in the Greenbook during that time? If Sargent is correct then evolving beliefs should be reflected not only in policy outcomes but also in Greenbook forecasts. In this paper they are. By conditioning on the Greenbook, it is show that both inflation outcomes and Greenbook forecasts can be rationalised by evolving beliefs. The results improve on recent empirical evidence that has been criticised for relying on unrealistic beliefs that produce forecasts inconsistent with the Greenbook. 相似文献
44.
Marina Di Giacomo 《Empirical Economics》2008,34(3):537-565
The demand structure for yogurt is assumed to be properly described by a one level nested logit model that is applied to aggregate
market data. Given the presence of endogenous regressors, suitably lagged endogenous variables (Arellano and Bover in J Econom
68:29–51, 1995; Blundell and Bond in J Econom 87:115–143, 1998) are proposed as instrumental variables. The validity of this
set of instruments is discussed and price elasticities and marginal costs are recovered from the demand estimates. Total welfare
gains associated to the introduction of two new brands by the same manufacturer are finally computed. Prices and profits decreased
and total welfare increased. 相似文献
45.
Two cases of liposarcoma of the stomach are described. At computed tomography (CT) the neoplasms showed features of an aggressive malignant tumor, with no fatty values within. We discuss the differential diagnosis of such lesions and conclude that, although rare, liposarcoma should be considered as a possible diagnosis when a large exophytic gastric mass is detected at CT. 相似文献
46.
47.
Juan Gabriel Brida Giacomo Del Chiappa Marta Meleddu Manuela Pulina 《International Journal of Tourism Research》2014,16(2):180-190
This paper examines residents' perceptions of a wide set of externalities exerted by the development of cruise tourism. The research involved data collection in two ports located in the two largest Mediterranean islands, Sicily and Sardinia, during the summer peak of the cruise season 2011. These two cruise destinations are especially interesting as they are characterized by a distinct life cycle. The empirical findings show that the two groups of residents have statistically equal perceptions on cruise activity in their destination. A correspondence analysis shows that residents have an overall positive attitude on the development of cruise tourism with respect to social, cultural and economic impacts. Nevertheless, they also feel that cruise activity has a negative impact, especially on the environment. Heterogeneity in occupation is explicitly taken into account. These findings provide directions for local policy‐makers. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
48.
49.
A growing number of Local Public Transport (LPT) companies diversify their production lines by providing a large set of services. We investigate the cost structure of a sample of LPT companies operating in Italy and assess the presence and the magnitude of scope economies. We split the whole sample of firms according to their diversification strategy: private firms, mainly diversifying in competitive transport related services and public firms providing nontransport services in regulated markets. Scope economies appear sizeable for both groups but higher for firms pursuing a transport related strategy, suggesting caution in the multiutility development pursued by public LPT firms in Italy. 相似文献
50.