The Latent Heat of Single Flavor Color Superconductivity in a Magnetic Field

We calculate the energy release associated with first-order phase transition between different types of single flavor color superconductivity in a magnetic field.Comment: Updated version accepted by PRD, with minor change

SMART Recruiters' Helper

In today's world, recruiting the right employees becomes one of the most important success factors for almost all the businesses. However, most of the employers stated that inaccurate judgments about the candidates during the interview session has brought a huge negative impact to the companies. Hence, a system named SMART Recruiters’ Helper that helps to analyze the candidates' personalities based on their handwriting has been developed. To explain in more details, the system allows the recruiters to answer the evaluation questions in the system and the system will analyze the candidates’ personalities based on these answers. This project will then be started with the objectives of identifying the criteria used to select the right employee for the company, developing a system that improves the accuracy in choosing the right employee based on the Psychology studies and lastly, conducting the usability testing with Human Resource Professionals in order to ensure the success implementation of the system. Besides, the proposed system is mainly designed for the managers and the senior executive in Human Resource Department who involve in the recruitment of the lecturers. SMART Recruiters’ Helper system can also be used for all the computers that have already installed the Microsoft Office Professional Suite of business products. Next, the research methodology used in this project is interview and survey to collect the users’ requirements and the main tool to develop the system will be Microsoft Access 2007. An observation has also been conducted to 7 people in Human Resource department. The finding shows that the system is believed to be able to improve the accuracy of the hiring decision. This whole paper is comprised of the introduction part, the related technologies and studies, the methodology used in completing the project as well as the findings from the survey and interview session

Essays in Capital Mobility, Growth, and Macroeconomic Volatility

This dissertation comprises three chapters in international macroeconomics. Specifically, we focus on international financial integration and its linkage to economic growth and volatility. In Chapter 1, we revisit the Feldstein-Horioka (1980) puzzle that saving-investment correlation exhibits a pattern contrary to expectation, being higher among the OECD countries that are more financially integrated and lower among emerging markets economies with less financial integration and greater capital controls. We find that the evolution of FH coefficient is highly consistent with increased financial integration over time, thus resolving the puzzle dynamically. We also explain the cross-country component of the puzzle by showing that financial market imperfections influence how well FH coefficient measures capital mobility. In chapter 2, we study the linkage between financial integration and economic growth. We develop a dynamic stochastic model that generalizes Obstfeld\u27s (1994) model by incorporating the costs from systemic risk besides the well-known benefit from risk-sharing by Obstfeld (1994). We show that potential cost from the systemic risk could lower the benefit from risk diversification in an integrated financial market. By using the stock market data from Taiwan and US to calibrate the model, we find that the predictions of the model are consistent with actual data on growth. In chapter 3, we study the relationship between financial integration and economic volatility. Prior research that has studied this relationship has not explored the potentially distinct effects of capital inflows and capital out flows on volatility. Our contribution is to make this crucial distinction conducting our analysis. We find that non-OECD countries with higher levels of external debt assets are associated with lower consumption volatility, and external debt liabilities are associated with higher consumption volatility. This finding is insignificant for OECD countries

The Phase Transition Phenomenon of Shuffled Regression

We study the phase transition phenomenon inherent in the shuffled (permuted) regression problem, which has found numerous applications in databases, privacy, data analysis, etc. In this study, we aim to precisely identify the locations of the phase transition points by leveraging techniques from message passing (MP). In our analysis, we first transform the permutation recovery problem into a probabilistic graphical model. We then leverage the analytical tools rooted in the message passing (MP) algorithm and derive an equation to track the convergence of the MP algorithm. By linking this equation to the branching random walk process, we are able to characterize the impact of the signal-to-noise-ratio (\snr) on the permutation recovery. Depending on whether the signal is given or not, we separately investigate the oracle case and the non-oracle case. The bottleneck in identifying the phase transition regimes lies in deriving closed-form formulas for the corresponding critical points, but only in rare scenarios can one obtain such precise expressions. To tackle this technical challenge, this study proposes the Gaussian approximation method, which allows us to obtain the closed-form formulas in almost all scenarios. In the oracle case, our method can fairly accurately predict the phase transition \snr. In the non-oracle case, our algorithm can predict the maximum allowed number of permuted rows and uncover its dependency on the sample number