In this paper we discuss the estimation of the diffusion coefficient in one-factor models for the short rate via non-parametric methods. We test the estimators proposed by Ait-Sahalia (1996) , Stanton (1997) and Bandi and Phillips (2003) on Monte Carlo simulations of the Vasicek and CIR model. We show that the Ait-Sahalia estimator is not applicable for values of the mean reversion coefficient typically displayed by interest rate data, while the Stanton and Bandi–Phillips estimators perform better. Each of the three estimators depends crucially on the choice of the bandwidth parameter. Our analysis shows that the estimators give different results for both the data set analysed by Ait-Sahalia (1996) and by Stanton (1997) . Finally we show that the data sets used by Ait-Sahalia and Stanton are inherently different and, in particular, that very short-term data exhibit characteristics which are inconsistent with a diffusion. 相似文献
Rural tourism (RT) constitutes a valuable tool for the sustainable development of rural areas. This paper explores issues of tourist motivation in RT and develops a specially tailored perceived value (PV) scale for the RT sector. Special attention is given to links between tourists’ motivations, perceived values, and the service and actions by RT providers leading to the sustainability of rural life, culture, economies and environment. Following a literature review, qualitative and quantitative surveys developed a 27-item scale, exploring both the functional and the affective components of the scale. Seven research hypotheses were then tested by quantitative survey work. It was proven that the activities undertaken by the rural enterprise leading to greater rural sustainability are reflected in the PV scale through higher levels of satisfaction and loyalty of the rural tourists. The results of the study reveal that the RT sector has specific characteristics that tourists greatly value and that other specialist tourist markets cannot offer, as highlighted in the contribution made by RT enterprises to rural sustainability. This knowledge can help tailor product development and destination design to suit specific demands and influence communication and promotional activities. 相似文献
In many industries, production offshoring towards countries with low labour costs has been a common trend in recent decades. However, we find some resistance to dismantling factories in a footwear industry cluster in Spain. From a customer perspective of value creation, and based on qualitative and quantitative data, we analyse the evolution of firms’ offshore–inshore strategies associated with the main periods of cluster expansion and contraction over the last 25 years. We highlight three main findings. First, the pressures of the environment can terminate firms but not necessarily the entrepreneurial orientation of their owners to continue in the same industry. Second, adaptive processes to create value for the consumer in the footwear industry seek a balance between production offshoring and domestic production in order to optimize the firm's competitive position. Third, coevolutionary theory should consider not only the selection and adaptation processes but also the capacity of firms to influence their environment, since the alternative strategies to create value for customers in footwear industry have resulted in speeding up the footwear fashion market. We also suggest implications for research and practice. 相似文献
This paper investigates the different patterns of occupational gender segregation in the hospitality industry in Andalusia. The methodology is based on the segregation curve and different segregation measures. The results show that cleaning jobs, customer service and jobs with less responsibility in the area of administration are dominated by women, whereas maintenance, jobs with a high level of responsibility in the areas of kitchen, restoration, and administration are dominated by men. Occupational segregation increases as the age of the workers and size of the establishment increase, but decreases with level of education and is less common among workers with training contracts, whereas it is greater among part-time and seasonal workers. Horizontal segregation is more marked than vertical segregation in the hotel industry, but horizontal and vertical segregation is similar in restaurants. Finally, vertical segregation decreases with the size of the establishment, whereas horizontal segregation increases. 相似文献
This paper presents a multifactor asset pricing model for currency, bond, and stock returns for ten emerging markets to investigate the effect of the exchange rate regime on the cost of capital and the integration of emerging financial markets. Our results suggest that a fixed exchange rate regime system can help reduce the cost of capital in emerging markets by reducing the currency risk premia demanded by foreign investors. 相似文献
The aim of this paper is to investigate whether the various Italian regions’ efficiency in providing employment for disabled people under Law 12 March n.68 1999, “Regulation on the right to work of disabled people” (Law 68/99) can be affected by their institutional quality. For this reason, a Stochastic Frontier Approach is used for estimating the regional matching function, where the flow of disabled people who found a job is produced by the combination of unemployment and vacancies. The matching equation is estimated using regional data from ISFOL, from 2006 to 2011. Results show the presence of a territorial dualism with regard to the matching process. The Southern regions of Italy have the lowest efficiency scores due to their lower institutional quality. The empirical analysis confirms that a good institutional quality is able to reduce the inefficiency of the matching process of disabled people. Therefore, it requires the implementation of policies aimed at improving the level of institutions, particularly in Southern Italy, in order to improve the efficiency of Law 68/99.
The present paper analyses the seasonal concentration on the Andalusian coastline, a Spanish Mediterranean coastal destination characterised by its high seasonality in the summer months. The analyses were conducted by separating tourists according to their main travel motivation, and distinguishing sun and sand tourists from cultural and other segments tourists, based on their place of origin and on the coast they visited. The quantitative tools applied included the additive decomposition of the Gini index and the calculation of the relative marginal effects. The proposed methodology serves as a useful tool for tourism managers and administrators interested in reducing seasonality, since it facilitates the identification of tourists segments that can effectively contribute to the reduction of seasonal concentration. Among the main results for the studied area, it was found that given the heterogeneity of the groups of tourists (both domestic and foreign), it was much more effective to separate tourist segments by their main travel motivation. The cultural segment was the most favourable for deseasonalisation, especially within domestic tourists, since with foreigners the same deseasonalising effect was not present in all the coasts analysed. 相似文献