Personalized Recommender System becomes an important research field in Electronic Commerce, and the main goal of current recommendation models is provide Best-Service to users. But, from enterprise’s viewpoint, the Max-Earning strategy is necessary to improve the benefit of enterprise. To solving this problem, knapsack model is applied to describe the commonly used Top-N recommend mechanism fir...

Ang, Hodrick, Xing, and Zhang (2006a) show that stocks with high idiosyncratic return volatility tend to have low future returns. This paper further documents that idiosyncratic volatility is inversely related to future earning shocks, and more importantly, that the returnpredictive power of idiosyncratic volatility is induced by its information content about future earnings. We examine various...

This paper formulates an overlapping generations model with both life–cycle saving and altruistic bequests. For a given distribution of earning abilities, the model generates a stationary steady–state capital–to–labor ratio for the economy as a whole and a stationary distribution of net worth among households. We calibrate the model, using the 1995 Survey of Consumer Finances to fix the distrib...

The purpose of this study is to investigate the impact of exchange rate misalignment on inflation persistence. For this purpose, Vector Auto Regression method and Markov Switching model is used for quarterly data during 1989:4 -2014:3. The results show that, the impact of liquidity growth and exchange rate misalignment on inflation persistence is positive. On the other hand, GDP growth has a ne...

The exponential growth of e-commerce borne from globalisation has fuelled the use of e-payment systems that are clearly a prerequisite business practice given that Internet consumers must pay for products and services. It is acknowledged that credit card payment is the foremost method for on-line purchases. However in Islamic countries, such as Libya, religious and ethical barriers prohibit the...

This paper examines how job displacement and physical disability suffered by a spouse affects the probability that the person’s marriage ends in divorce. According to the standard economic model of marriage, the arrival of new information about a partner’s earning capacity that an earnings shock conveys might affect the gains that the couple believes it will receive from remaining married. Shoc...

We examined factors related to attitudes toward marriage and the importance of having children in both the US and Singapore. Path analysis indicated that life dissatisfaction leads to materialism, and both of these factors lead to favorable attitudes toward marriage, which leads to greater desire for children. Further analysis indicated this model was effective in explaining the difference in d...