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排序方式: 共有1093条查询结果,搜索用时 264 毫秒
1.
Empirica - In March 2010, the European Commission launched the Europe 2020 strategy ‘for smart, sustainable and inclusive growth’ in the EU. Education is a major pillar of the Europe... 相似文献
2.
Mansano Rafael Esteves Allem Luiz Emilio Del-Vecchio Renata Raposo Hoppen Carlos 《Quality and Quantity》2022,56(4):2325-2340
Quality & Quantity - A portfolio associated with a balanced signed graph that contains both positive and negative edges is more predictable and risk-averse, and is therefore likely to require... 相似文献
3.
Rodríguez Gabriel Ojeda Cunya Junior A. Gonzáles Tanaka José Carlos 《Portuguese Economic Journal》2019,18(2):107-123
Portuguese Economic Journal - A set of RLS-type models with ARMA and ARFIMA dynamics is estimated and compared in a forecasting exercise with ARFIMA, GARCH and FIGARCH models. It is an extension of... 相似文献
4.
González-Avella Juan Carlos Lugo Haydée San Miguel Maxi 《Journal of Economic Interaction and Coordination》2019,14(1):203-214
Journal of Economic Interaction and Coordination - This paper explores a situation in which a population split into two groups attempts to achieve the socially efficient outcome of a coordination... 相似文献
5.
This paper surveys the conditions under which it is possible to represent a continuous preference ordering using utility functions. We start with a historical perspective on the notions of utility and preferences, continue by defining the mathematical concepts employed in this literature, and then list several key contributions to the topic of representability. These contributions concern both the preference orderings and the spaces where they are defined. For any continuous preference ordering, we show the need for separability and the sufficiency of connectedness and separability, or second countability, of the space where it is defined. We emphasize the need for separability by showing that in any nonseparable metric space, there are continuous preference orderings without utility representation. However, by reinforcing connectedness, we show that countably boundedness of the preference ordering is a necessary and sufficient condition for the existence of a (continuous) utility representation. Finally, we discuss the special case of strictly monotonic preferences. 相似文献
6.
Renegotiations are often claimed to be the major pitfall in public–private partnership projects. In fact, the literature and empirical evidence suggest a bias toward favoring concessionaires, although there are well-known examples of harmful unilateral decisions by governments. This article establishes a distinction between structural renegotiations (with changes in the risk-sharing agreement) and nonstructural renegotiations (without shifting risk) and analyzes the implications of structural renegotiations in a road concession by comparing the ex ante and ex post financial implications for government, concessionaire, and users. The selected project is one that started as a shadow toll and was later changed to real toll. The analysis shows that the renegotiation essentially transferred costs to the users. The financial burden for the government decreased and the internal rate of return (IRR) of the concessionaire increased slightly although the overall risk profile of the concession decreased. The users supported a 40% higher cost, and the system gained an additional cost component (the electronic tolling system). Overall the global financial costs increased 40% when compared with the initial regime. The article also sets out some discussions and implications for policymakers. 相似文献
7.
Gerardo Angeles-Castro Laura Josselin Arriola-Barcenas Carlos Bonifacio Baeza-Almaraz 《Applied economics letters》2018,25(21):1531-1534
By using panel data analysis across 368 water utilities in Mexico over the period 2010–2014, we find that small firms are more efficient than medium and large providers and that increasing production is associated with less efficiency. Billing, income collection and profitability are relevant factors to improve efficiency. Medium and large firms require to measure consumption by service with meters in order to increase efficiency, while small firms do not require it. 相似文献
8.
We explore the relationship between inequality and entrepreneurial activity. Drawing on cross-sectional data from a largescale survey of the economic conditions of individuals across India, we develop a number of dimensions of inequality to explore empirically how inequality interacts with entrepreneurship, operationalized as self-employment or as employing other people. We find compelling evidence that there are thresholds to becoming self-employed, and even more so to assembling the combinations of resources and personal attributes required to become an employer. Greater inequality leaves more people unable to make the transition to self-employment, leaving casual laboring as the occupation of necessity. At the same time, inequality increases the number of employers in a society, by concentrating resources - particularly land and finance - enough for significant numbers of people to be able to cross this higher threshold. Lastly, greater differentiation into social or religious groups curtails the ability to cross either entrepreneurial threshold, presumably by limiting the extent and benefits of social networks of value for entrepreneurship. 相似文献
9.
Leonardo Aureliano-Silva Carlos Alberto Alves Sérgio Luiz do Amaral Moretti 《食品市场学杂志》2019,25(3):322-339
This study analyzes the effect of informational clues and Chef-Cuisine congruence, and their relation to advertisements for a Japanese restaurant. Two experiments were conducted with 171 consumers. Findings supported the following: Congruence between a Japanese restaurant and Japanese Chef results in higher approval ratings than the combination of Japanese restaurant with Brazilian Chef. However, if the advertisement states that the restaurant has won an award, then Chef-restaurant congruence is no longer an important factor in consumers’ evaluations. 相似文献
10.
Flávio de Freitas Val Antonio Carlos Figueiredo Pinto Claudio Henrique da Silveira Barbedo 《新兴市场金融与贸易》2018,54(11):2577-2595
This article examines the relationship between the monetary policy implemented by the Central Bank of Brazil and the stock market. We implement event study analysis and analyze the effect of the anticipated and unanticipated components of monetary policy decisions on the returns of the IBOVESPA index and 53 stocks. We find that monetary policy has a significant effect on the stock market, but is only responsible for a small proportion of market variation. The analysis at the sector level with expected returns identifies that the financial sector is the most affected by this policy, whereas with excess returns only industrial goods are significantly affected. Moreover, individual assets respond in a rather heterogeneous fashion to monetary policy; however, when we look at excess returns, we identify a reduction in the intensity and in the number of companies impacted by monetary policy. Finally, the monetary shock is explained by unanticipated variations in the unemployment rate, in the Industrial Production Index, in the General Market Price Index, and in the Broad Consumer Price Index. 相似文献