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51.
Tanja Mihalič Tina Šegota Ljubica Knežević Cvelbar Kir Kuščer 《Journal of Sustainable Tourism》2016,24(11):1489-1505
In the context of sustainable tourism development, there are many studies about the exchange process between residents and tourism, yet this issue is practically unexplored with respect to the political environment of tourism. Therefore, this paper introduces and posits that the political environment is a necessary enabler for implementing sustainable tourism. The authors extend the established three-pillar sustainability concept by adding in the political dimension. Then they surveyed how residents' positive and negative perceptions of tourism impacts determine their satisfaction with life in the tourism destination and thus their support for tourism in their community. The model was empirically tested within the context of the long-established Alpine destination of Bled in Slovenia. The findings confirm the importance of the political environment and question the sustainability of Bled's tourism development. It is suggested that the community has relatively weak destination governance due to the underdeveloped political environment. The survey expands and deepens the tourism sustainability debate by adding in the political environment and how it relates to the emerging growth of research on destination governance. The proposed model can be adapted and applied to any destination in order to improve its governance, including the implementation of sustainable tourism development. 相似文献
52.
Dragan Đorić Emilija Nikolić-Đorić Vesna Jevremović Jovan Mališić 《Quality and Quantity》2009,43(3):481-493
The paper considers some properties of measures of asymmetry and peakedness of one dimensional distributions. It points to
some misconceptions of the first and the second Pearson coefficients, the measures of asymetry and shape, that frequently
occur in introductory textbooks. Also it presents different ways for obtaining the estimated values for the coefficients of
skewness and kurtosis and statistical tests which include them. 相似文献
53.
Andrijana Bačević Nemanja Vilimonović Igor Dabić Jakov Petrović Darko Damnjanović Dušan Džamić 《工程经济学家》2019,64(3):254-274
AbstractIn this article we consider a portfolio optimization problem under multiple real-world constraints, such as: cardinality constraints, tracking error, active share, and turnover. We propose a heuristic based on variable neighborhood search (VNS) that effectively addresses additional constraints that introduce non-convexities. In the VNS-based heuristic, several neighborhood structures are introduced and fast local search is implemented. We develop a VNS portfolio rebalancing framework (VNS-PRF) with two rebalance strategies. Data sets provided by a financial investment firm are used to evaluate the validity and reliability of the proposed VNS-PRF. Computational experiments and different portfolio performance measures indicate that our approach is able to obtain solutions with competitive quality and can be applied on large-scale data sets. 相似文献
54.
55.
The problem of optimal estimation of location and scale parameters of distributions, by means of two-dimensional confidence regions based on L-statistics, is considered. The case, when the sample size tends to infinity, is analyzed. 相似文献
56.
In the median sector, 100 percent of the long-run response of the sectoral price index to a sector-specific shock occurs in the month of the shock. The standard Calvo model and the standard sticky-information model can match this finding only under extreme assumptions concerning the profit-maximizing price. The rational-inattention model of Ma?kowiak and Wiederholt [2009a. Optimal sticky prices under rational inattention. American Economic Review 99, 769–803] can match this finding without an extreme assumption concerning the profit-maximizing price. Furthermore, there is little variation across sectors in the speed of response of sectoral price indexes to sector-specific shocks. The rational-inattention model matches this finding, while the Calvo model predicts too much cross-sectional variation. 相似文献
57.
Alexander Bilimović 《Journal of Economics》1944,11(1):45-95
Ohne Zusammenfassung 相似文献
58.
In this paper we investigate portfolio optimization in the Black–Scholes continuous-time setting under quantile based risk measures: value at risk, capital at risk and relative value at risk. We show that the optimization results are consistent with Merton’s two-fund separation theorem, i.e., that every optimal strategy is a weighted average of the bond and Merton’s portfolio. We present optimization results for constrained portfolios with respect to these risk measures, showing for instance that under value at risk, in better markets and during longer time horizons, it is optimal to invest less into the risky assets.This research was partially supported by the National Science and Engineering Research Council of Canada, and the Mathematics of Information Technology and Complex Systems (MITACS) Network of Centres of Excellence. 相似文献
59.
From the perspective that integrates marketing and banking practice and theory, this work reaffirms the relevance of interactions between the issues of ‘what’ (marketing strategy) and ‘why’ (financial performance). The key finding is that the marketing strategy–financial performance link faces serious difficulties, but they do not inevitably prevent the promotion and greater acceptance of the basic idea. The strongest barriers include negative attitudes of marketers to the language of financial indicators, different paradigms of people from marketing and banking, insufficient presence of the key concepts in the basic literature and unrealistic requirements of academic models. On the other side, the demand that becomes more powerful and sophisticated, and intensifying competition, are the major drivers of positive changes in practice and theory. Greater respect for risk indicators, improved short-term/long-term balance, stronger integration of marketing strategy elements, as well as more realistic general frameworks, constitute the group of encouraging trends. 相似文献
60.
South‐eastern European monetary and economic statistics from the nineteenth century to World War II (Athens: Bank of Greece,Sofia: Bulgarian National Bank,Bucharest: National Bank of Romania,Vienna: Oesterreicshische Nationalbank, 2014. Pp. 405. 87 figs. 137 tabs. (www.bankofgreece.gr/Pages/en/Publications/Studies/seemhn.aspx) 下载免费PDF全文
Stefan Nikolić 《The Economic history review》2016,69(1):391-392