排序方式: 共有62条查询结果,搜索用时 15 毫秒
1.
Díaz-Fernández M. Carmen González-Rodríguez M. Rosario Pawlak Marek Simonetti Biagio 《Quality and Quantity》2019,53(5):2421-2438
Quality & Quantity - Family firms (FFs) are the backbone of entrepreneurial fabric in many countries. Management of such businesses is complex because of their features: the overlap between... 相似文献
2.
We describe a common pool resource game in which players choose how much of the stock to extract in a sequential manner. There are two choices and one represents taking a larger proportion of the stock than the other. After a player makes a choice, the remaining stock grows at a constant rate. We consider a game with a finite number of alternating moves. It is shown that changes in the larger proportion of the stock that the players are allowed to take and the growth rate affect equilibrium, but have little effect on behavior in the laboratory. In addition to observing more cooperation than predicted, we observe that parameters that are strategically irrelevant affect behavior. The results of this research might help policy makers in developing adequate policies to prevent overexploitation of some natural renewable resources. 相似文献
3.
We report results of one-shot traveler’s dilemma game experiments to test the predictions of a model of introspection. The
model describes a noisy out-of-equilibrium process by which players reach a decision of what to do in one-shot games. To test
the robustness of the model and to compare it to other models of introspection without noise, we introduce non-binding advice.
Advice has the effect of coordinating all players’ beliefs onto a common strategy. Experimentally, advice is implemented by
asking subjects who participated in a repeated traveler’s dilemma game to recommend an action to subjects playing one-shot
games with identical parameters. In contrast to observations, models based on best-response dynamics would predict lower claims
than the advised. We show that our model’s predictions with and without advice are consistent with the data.
相似文献
4.
We study the relationship between new imported inputs and the introduction of new domestic products. To this purpose, we assemble a novel data set covering 25 European countries over 1995–2007 and containing information on domestic production and bilateral trade for the universe of goods. We develop a procedure to identify new imported inputs and new domestic products, while dealing with the complications raised by the yearly changes in the commodity classifications. We augment these data with information on prices and novel estimates of quality. We organize the empirical analysis around a version of the endogenous growth model with expanding variety, in which inputs are allowed to be heterogeneous in terms of quality. In line with this framework, we find three main results. First, new imported inputs have a strong positive effect on product creation in Europe. Second, they work through a combination of mechanisms, allowing countries to benefit from both wider and better sets of intermediate products. Finally, new imported inputs give a substantial boost to output growth in manufacturing. 相似文献
5.
Nuria Gamero Josep Espluga Christian Oltra Rosario Solá Jordi Farré 《Journal of Risk Research》2013,16(6):685-702
This paper examines the determinants of trust in public information on technological risk in a petrochemical complex located in Tarragona (Spain). Data from focus groups (eight) and a questionnaire survey (N = 400) are drawn together to analyse how two local communities exposed to major chemical hazards perceive information on risk and its sources. Results show how trust relies on two main factors, namely expertise and trustworthiness, that are significantly influenced by a third one, antagonism. Results also illustrate the relevance of the institutional context when understanding how communities give meaning to the available information on risk. 相似文献
6.
The use of improved covariance matrix estimators as an alternative to the sample estimator is considered an important approach for enhancing portfolio optimization. Here we empirically compare the performance of nine improved covariance estimation procedures using daily returns of 90 highly capitalized US stocks for the period 1997–2007. We find that the usefulness of covariance matrix estimators strongly depends on the ratio between the estimation period T and the number of stocks N, on the presence or absence of short selling, and on the performance metric considered. When short selling is allowed, several estimation methods achieve a realized risk that is significantly smaller than that obtained with the sample covariance method. This is particularly true when T/N is close to one. Moreover, many estimators reduce the fraction of negative portfolio weights, while little improvement is achieved in the degree of diversification. On the contrary, when short selling is not allowed and T?>?N, the considered methods are unable to outperform the sample covariance in terms of realized risk, but can give much more diversified portfolios than that obtained with the sample covariance. When T?<?N, the use of the sample covariance matrix and of the pseudo-inverse gives portfolios with very poor performance. 相似文献
7.
Maria do Rosario Correia Reinhard Neck Theodore Panagiotidis Christian Richter 《International Economics and Economic Policy》2008,5(1-2):209-223
In this paper, we investigate Portuguese government expenditures and revenues as an example for a long time series. Our hypothesis states that there may be periods when the deficit is sustainable and those when it is not. Usually, after a period of unsustainable deficits, a new regime takes over. These regime shifts call for an approach that takes into account a non-constant structure of the underlying data generating process. Consequently, we use different tests which we set up in a time-varying framework. We apply and compare the results of the Trace test, Breitung’s non-parametric test and the Bohn test. We identify several break points and find that the Trace test performs worst in this case while Breitung’s test and the Bohn test give similar results. Comparing the results with history, we find that the last two tests best reflect what happened historically. 相似文献
8.
Quality & Quantity - Social Media has transformed people’s lives and behaviour. Over the past decade it has also transformed the Tourism Industry. Despite this triumph, insufficient... 相似文献
9.
The effects of offshoring of production have received a great deal of interest due to their implications on labour markets. However, the main theoretical predictions related to this issue are not always fulfilled in the empirical analysis; according to the Stolper–Samuelson theorem, there seems to be unanimous support for its effects in advanced countries whose production is relocated but not at all for recipient economies of the same. Additionally, there is a lack of empirical evidence in countries specialized in unskilled-labour tasks which are, at the same time, economies with higher relative wages in a global framework such as the Spanish economy. In this sense, the aim of this article is to analyse the effects of material offshoring in the relative composition of employment in the Spanish manufacturing industry during the period 1990–2007. Furthermore, we investigate the effects of immigrant labour and the temporary employment rate due to its increasing relevance in the Spanish economy during the period analysed. Using a generalized methods of moments (GMM) approach, our results suggest that, as opposed to most developed countries, offshoring in Spain has favoured the demand for blue-collar workers. In addition, we confirm that the increase in immigration and the increasing use of temporary contracts have enlarged the share of low-skilled workers. 相似文献
10.
The Political Economy of Public Expenditures in Agriculture: Applications of Concepts to Mozambique
下载免费PDF全文
![点击此处可从《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Tewodaj Mogues Domingos do Rosario 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2016,84(1):20-39
This paper undertakes an investigation of agricultural public investments in Mozambique, drawing on insights from qualitative field interviews conducted in Mozambique, secondary data analysis and examination of the existing empirical literature, and by situating these insights within a political economy conceptual framework. We explore the driving factors behind the amount and allocation of public funds to agriculture, and behind the differential attention that various types of public investments receive in the process of making decisions on resource allocation. Agricultural public investments are more likely to be made that have two key features: higher attributability to politicians and donors of the output of public spending, and a shorter lag time between expenditures incurred and outputs produced. Evidence on geographical targeting of agricultural public funds corresponds more closely with theories suggesting that resources are used to sway communities opposed to the ruling party, rather than to reward political supporters. Examination of the effect of actors' and organisations' incentives and constraints on resource allocation in agriculture points to the importance of not treating “government,” “the ruling party” and other institutions as monolithic bodies; the paper instead highlights how differentiated interests within seemingly coherent institutions drive what gets public expenditure attention in the agricultural sector. 相似文献