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This paper uses an overlapping generation model with uncertainty and endogenous fertility to study households¡¦ educational and investment choices. Individuals are assumed to be selfish and the intra-family deals are ruled by a self-enforcing ¡¥family constitution¡¦. Within this framework, parents finance their children¡¦s education inasmuch as they receive a return (a share of the increased earnings accruing to the children) and degree of risk aversion. And we show that the effect of social security on fertility and saving is analyzed both in the absence and in the presence of a perfect capital market. The impact on family's decision of the ability of the bargaining power is one of the focal points that this text is discussed, too. We also show that under this arrangement, individuals purchase less education than socially optimal. This yields a rationale for public action, either via public provision or via subsidization. We analyses both policies and find that they have different implications for households¡¦ fertility decisions. In particular, subsidization should be preferred if we wish to keep the rate of population growth as high as possible.

In the literature, many methods are proposed to value American options. However, due to computational difficulty, there are only approximate solution or numerical method to evaluate American options. It is not easy for general investors either to understand nor to apply. In this thesis, we build up an option pricing and virtual asset model system, which provides a friendly environment for general public to calculate early exercise boundary of an American option. This system modularize the well-handled pricing models to provide the investors an easy way to value American options without learning difficult financial theories. The system consists two parts: the first one is an option pricing system, the other one is an asset model simulation system. The option pricing system provides various option pricing methods to the users; the virtual asset model system generates virtual asset prices for different underlying models.

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The technology of Wireless Local Area Network(WLAN) is getting mature.Even the INTEL,Co developed the WLAN chip (Centrino) that can be embedded in laptops or PDAs. So that , the chip could upgrade the device of the efficiency of WLAN and increase the number of the users. Recently, the WLAN has been a very hot issue, but most of the studies that have been done are concerned with the technique perspective¡Bproperty perspective and strategy; very little research has been conducted to investigate the consumer perspective. Therefore, for saving the resources and enhancing the quality of the WLAN¡¦s research, the purpose of this study is to explore the network users¡¦ acceptance after implement the system based on ¡§the Unified Theory of Acceptance and Use of Technology¡¨(UTAUT). The results of this research indicate that (1) there are 4 key components extracted: ¡uPerformance Expectancy¡v¡B¡uEffort Expectancy¡v¡B¡uSocial Influence¡v and¡uFacilitating Condition¡v;(2) ¡uPerformance Expectancy¡vand¡uEffort Expectancy¡v influence employee¡¦s behavior intention significantly . That is, we can use the model to predict the network users¡¦ behavior onUsing WLAN. On the other hand, this study is also investigate the effect after implement WLAN and made the suggestions to development of Govermant or ISP suppliers in future.

The rapid development of the Internet and Wireless Local Area Network cause VoIP plays an important role among the emerging communication products. The purpose of this study is to explore the VoIP acceptance of the Internet user from the model of the Unified Theory of Acceptance and Use of Technology (UTAUT). This study designed a questionnaire that regarded with the degree of the acceptance of VoIP according to the review of the literatures. After the research, this study indicates that there are three components that influenced the degree of acceptance of VoIP include perceived easy of use, performance expectancy and social influence and different factors under different demography significantly influence the intention of the user. Related to these three components, this study first indicates that sex has a significant influence in the expectation of the achievement and the result shows that male is more significant than female. Second, age has no significant influence. Third, different education level has significant influence in the component of perceived easy of use, especially the user who has Master and PHD degree is more significant than the user only has graduated degree. Forth, different using experience and Voluntariness of Use have different significant influence among these three components.

Taiwan is usually considered as a small open economy. Trade and exchange rate policies in Taiwan have substantially changed since the mid-1980s. Not only has trade been liberalized, but exchange rates of the New Taiwan Dollar(NTD) were also allowed to fluctuate. This paper applies the Threshold Regression Model that puted forward of Cancer and Hansen (2004) and combines the expectation-augmented Phillips curve with a threshold for the pass-through. The paper examines whether the short-run magnitude of the pass-through is affected by the business cycle, direction and magnitude of the exchange rate change. For that purpose, two variables are tested as thresholds: (1)output gap, (2)exchange rate change. The results indicate that the short-run pass-through is higher when the economy is booming, as well as the exchange rate depreciates above some threshold. And they have important implications for monetary policy and are possibly related to pricing-to-market behavior and menu costs of price a djustment.

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Twenty-one century is a Knowledge economy system. Knowledge is being substituted for the machine facilities, capital asset, materials or labors, and to be the most important productive materials and competitive weapons for the enterprise. We can find out many high technology companies, which have the very high stock price in the U.S., but they do not have lots of tangible assets. Even though some of them have ten or hundred times of marketing values compare with the tangible assets. The main difference is the Intellectual Capital that is not presented by the financial reports. Therefore, for the enterprise, it is the most important issue to integrate the knowledge and enterprise core ability, and transfer to be knowledge oriented organizations by using the Intellectual Capital.There are many domestic enterprises begin to set up the knowledge management (KM) mechanism under the industry pressure, and start the research about how to drive the KM and with what kind of steps. Although there are many scholars have proposed different KM framework, activities and influential factors, the KM will still be a new issue for enterprise.Therefore, this research will propose three cases of domestic enterprise which carry out the KM. In order to study the procedure for the KM, the framework of KM, the influential factors of KM, the motivation of KM, how to drive the KM process, what kind of activities of KM, when to drive the KM, and what kind of information technology will also be discussed in this paper. Finally, this study will compare with the framework of current KM literature and analyze the result, and to be the reference for other enterprise in carrying out KM.