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1.
Si considera la classe delle funzioni realiF(x,y) definite inS×S, conSR N , che soddisfano per ognix,yS la condizione di monotoniaF(x,y)+F(y,x)0. Indebolendo la precedente disuguaglianza si introducono classi di funzioni monotone generalizzate e, supponendo soddisfatta una opportuna condizione di omogeneità, si caratterizzano tali funzioni in base alla struttura del segno delle funzioni x, v (t, s) = F(x + tv, x + sv), x S, v R N \{0}. Infine dopo aver definite le funzioni F-differenziabili, si introducono classi di funzioni conversse generalizzate, rispetto ad F, e si studiano i collegamenti tra queste classi e la monotonia generalizzata diF.
Summary We consider the class of real valued functionF(x,y) defined inS×S, withSR N , satisfying x,yS the monotone conditionF(x,y)+F(y,x)0. Weakening the previous inequality we introduce the class of quasi-monotone, pseudo-monotone and strictly pseudo-monotone functions. Under a suitable assumption of homogeneity we characterize the generalized monotone functions studying the sign structure of the functions x, v (t, s) = F(x + tv, x + sv), x S, v R N \{0}.Finally by means of the notion ofF-differentiability we introduce new classes of generalized convex functions (with respect toF) and we study the relationship between these classes and the generalized monotonicity ofF.


Questa ricerca è stata parzialmente finanziata dal Ministero per l'Università e la Ricerca Scientifica.  相似文献   
2.
Within a wide body of literature it has been argued and demonstrated that community participation in tourism development is advantageous in terms of the sustainability and effectiveness of the development policies adopted. However, over time, doubts have been raised about whether community participation should take place in developing countries. There are major concerns regarding the immaturity and the incompliance of the political and social conditions of developing countries in relation to the requirements necessary for an effective participatory planning. In this paper, we argue that mega-events, due to their wide scope and the key role that large groups of stakeholders play in their success, may represent a driver for community participation in developing countries. In order to explore our idea, we will analyse tourism development and the planning of a mega-event within the Yangtze River Delta area, driven by the organisation and preparation of the Shanghai World Expo. According to our evidence, some initial elements of participative decision-making have indeed developed around the organisation of this mega-event, even though China has historically been considered refractory towards community participation. Finally, we discuss the findings in the light of existing knowledge to elicit significant questions about community participation in tourism development within developing countries and to address further research on this topic.  相似文献   
3.
Out-licensing is a technology exploitation option to generate revenues without investing in downstream complementary assets. Despite its increasing strategic relevance, the strong complexity of out-licensing activity determines a substantial discrepancy in firms’ ability to extract monetary benefits from this practice. Searching for determinants of out-licensing performance, the paper focuses in particular on the role of licensing managers. Based on a multiple case study analysis involving 26 out-licensing deals executed in seven Italian biotech NTBFs, the study shows that expert scientific skills, extensive licensing practice and prior employment in multinationals, but not an intense social network, characterise successful licensing managers, while high delegation and powerful intrinsic rewards enable individual capacities of licensing managers to translate into actual economic value.  相似文献   
4.
We provide evidence on the firm level productivity effects of imports of intermediates. By exploiting a large panel of Italian manufacturing firms, we are able to separately explore the role of importing from high and low income countries. Importing does not permanently affect the firm productivity growth. This finding holds both when we test for the import entry by means of Propensity Score Matching techniques and when we analyse the import intensity within a dynamic panel data model framework. On the contrary, we confirm the existence of self-selection into importing. Also, our evidence supports the learning-by-exporting effects in Italian manufacturing and we prove that this result is robust to the control of firm import activity.  相似文献   
5.
This article aims to test the conjecture advanced in a recent work by Bianchi and Menegatti (Appl Econ Lett 14:963–967, 2007) that usual β-convergence panel regressions may produce biased evidence, due to their inability to distinguish between actual catching-up across countries and decreasing growth rates over time within countries. The test considers different sub-groups in a dataset of 72 countries for the period 1970–2000 and introduces both human capital and proxies for technological differences into the analysis. The results confirm the conjecture that traditional evidence about β-convergence may be misleading; they also show that catching-up across countries is weaker than usually claimed and that this process occurred only in some sub-groups of countries.  相似文献   
6.
We study the optimal design of financial safety nets under limited private credit, asking whether and when it is optimal to restrict ex ante the set of investors that can receive public liquidity support. When the government lacks commitment, we show that the optimally designed safety net covers only a subset of investors. Compared to an economy where all investors are protected, this results in more liquid portfolios, better social insurance, and higher welfare. Our results can rationalize the prevalence of limited safety nets as well as the coexistence of traditional and shadow banks.  相似文献   
7.
Recently, human activities are more and more invasive with respect to biodiversity. Several studies highlighted the key role played by accountants in contributing to the development of tools able to support company in assessing, reporting, and disseminating, as well as accomplishing, the preservation of natural species and ecosystems (King and Atkins, 2016). Corporate reporting of environmental information might increase the credibility of forest certifications, given that some scholars argued that certified forests are not often run, in a sustainable way. Moreover, certifications sometimes cover harmful forest practices (Elad, 2014) and do not ensure a good quality of environmental reporting and performance. The research question therefore intends to explore how extinction accounting and accountability (EAA) is able to reflect ex post the company's business strategy and, at the same time, influence ex ante its formulation by easing the prevention of deforestation risk and addressing the issue of credibility through specific actions. In more detail, the “Emancipatory Framework for Extinction Accounting and Accountability” (EFEAA) (Atkins and Maroun, 2018) was tested using content and interpretative analyses based on the reports inherent to top four companies working in West Europe in the tissue industry, where the preservation of forest heritage is a “compulsory route” for assuring the business sustainability, in terms of both raw material renewal and brand reputation. The findings highlighted the first attempt to carry out a qualitative research over the management of forest issues. In our study, companies tend to report advantages arising from the use of forest, but this kind of disclosure is too generic without providing evidence over the ecosystem services forests produce. Moreover, firm size affects the quantity and the quality of disclosure. At last, managerial implications and future research avenues are outlined and discussed.  相似文献   
8.
This paper investigates the relationship between financial institutions' expectations of the current account and the fiscal balance. Using professional macroeconomic forecasts for the G‐7 countries, we find a positive relationship between forecasts of the cyclically adjusted fiscal balance deficit and forecasts of the current account deficit, indicating that professional forecasts embody links implied by the twin deficits hypothesis. In assessing the relationship between the forecasts of the fiscal deficit and the current account, we find that forecasters correctly make the distinction between the effect of fiscal policy and automatic stabilizers.  相似文献   
9.
Abstract

This study examines whether social and human capital influence the compensation of individual auditors in the small audit firm market. We employ a sample of Italian auditors and use measures from the network and auditing literatures to capture their professional connections, representing social capital, and their industry expertise, representing human capital. Our findings show a positive and economically meaningful association between these individual attributes and auditor compensation. We run several tests to address potential endogeneity issues in our research design. Our results suggest that, in the small audit market, clients perceive as valuable those auditors with higher social and human capital, and as a result, are willing to pay a premium for these specific auditor attributes.  相似文献   
10.
There has been considerable discussion of sustainable tourism development, in both theory and practice. Less attention has been paid to the discourses, ideologies and power relations which help to shape 'sustainable' tourism policies and planning instruments. This paper analyses recent initiatives introduced by the regional government of the Canary Islands, designed to bring about a more sustainable model of regional tourism, including a temporary moratorium on tourism development and the drafting of a strategic and normative set of guidelines for sustainable tourism. The paper considers the contested nature of the public debate that accompanied these initiatives within the wider context of the regionally distinct pattern of tourism and capitalist development. It is argued that the legacy of uneven development, and the entrenched power of regional economic and political élites, is likely to undermine the prospects for a just model of sustainable tourism, and to consolidate the continuing privatisation of space and socio-spatial inequalities across the region.  相似文献   
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