stock return is usually considered to be affected by firm’s financial ratios as well as economic variables. fundamental method assume that stock returns is not solely related to the stock market. most result come from the company condition , industry situation and whole economy. in this paper, this relationship between stock return and fundamentals is studied using the data for 22 pharmaceutica...

This thesis is a collection of three essays in international trade. Chapter 1 explains how firm heterogeneity and market structure can distort the geography of international trade. By considering only the intensive margin of trade, Krugman (1980) predicts that a higher elasticity of substitution between goods magnifies the impact of trade barriers on trade flows. In this chapter, I introduce fi...

The electricity market has been widely introduced in many countries all over the world and the study on electricity price forecast technology has drawn a lot of attention. In this paper, with different parameter Ci and ei assigned to each training data, the flexible Ci Support Vector Regression (SVR) model is developed in terms of the particularity of the price forecast in electricity market. F...

As the title suggests, this paper compares two “formula” or mechanical investment techniques, dollar cost averaging and a relatively new proposal, value averaging, to a form of random investing to determine if any technique yields superior investment performance. Results indicate that value averaging does provide superior expected investment returns when investment prices are quite volatile and...

The mobile online medium (i.e. mobile data communication) allows the creation of context-sensitive profiles for mobile consumers by using identityand context information and thereby enabling the efficient targeting of current consumers' needs. However, current implementations of Mobile Marketing activities do not make use of these beneficial unique features and apply, for instance, content-base...

We separate the “rentier” portion of the budget constraint of the representative agent from the “income-plus-distributed profits” segment. The former’s wealth consists exclusively of returns on government bonds, the latter’s wealth is wage income from working for firms plus the distributed profits of the latter. The non-neoclassical element is the non-imposition of the market-clearing assumptio...

Using a representative-household search and matching model with endogenous labor force participation, we study the cyclicality of market transition rates between employment, unemployment, nonparticipation. When interpreted through lens model, cyclical behavior implies that participation margin is strongly countercyclical: household's incentive to send workers falls in expansions. We identify tw...