Regge Closed String Scattering and its Implication on Fixed angle Closed String Scattering

We calculate the complete closed string high energy scattering amplitudes (HSA) in the Regge regime for arbitrary mass levels. As an application, we deduce the complete ratios among closed string HSA in the fixed angle regime by using Stirling number identities. These results are in contrast with the incomplete set of closed string HSA in the fixed angle regime calculated previously. The complete forms of the fixed angle amplitudes, and hence the ratios, were not calculable previously without the input of zero-norm state calculation. This is mainly due to the lack of saddle point in the fixed angle closed string calculation.Comment: 10 pages. v2: typos correcte

Black Holes at the LHC: Progress since 2002

We review the recent noticeable progresses in black hole physics focusing on the up-coming super-collider, the LHC. We discuss the classical formation of black holes by particle collision, the greybody factors for higher dimensional rotating black holes, the deep implications of black hole physics to the `energy-distance' relation, the security issues of the LHC associated with black hole formation and the newly developed Monte-Carlo generators for black hole events.Comment: 6 pages, 10 figures, Plenary talk given at the 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY08), Seoul, Korea (June 16-21, 2008). To be published in the Conference Proceeding

Inflation in the nonminimal theory with `K(phi)R' term

A class of inflationary models with the nonminimal coupling term `K(phi)R' is considered. We show that the successful inflation can take place if the ratio between the square of the nonminimal coupling term and the potential for the scalar goes asymptotically constant.Comment: 3 pages, 1 figure, Talk given at 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY08), Seoul, Korea, 16-21 Jun 200

Pricing Factors in Real Estate Markets: A Simple Preference Based Approach

Conventional wisdom tells us that the price level of properties should be supported by the rent they receive. This paper examines the pricing factors of properties by analyzing how individuals allocate their income to housing consumption and other goods, which in turn become the rent (or implicit rent) to support property values. Our model’s results can explain several puzzling observations in property markets, including why the variance of property appreciation rates is much higher than that of income growth rates in the same area.Preference-based model, pricing factors, property appreciation, property markets

A Rational Explanation for Boom-and-Bust Price Patterns in Real Estate Markets

This paper develops a stylized model to provide a rational explanation for the boom-and-bust price movement pattern that we frequently observe in the real world. Our stylized model indicates that there are three conditions to form a boom-and-bust price pattern in a community: a move-in of high income residents, wide income gap between new and existing residents, and supply process that leads to an inventory buildup. It seems that, based on these three conditions, China is more likely to experience a boom-and-bust price movement pattern than a developed country with a more mature and less vibrant economy.Real Estate Cycles; Boom-and-Bust; Supply Decision; Moving Costs

Does the REIT Stock Market Resemble the General Stock Market?

Gyourko and Keim (1993) point out that the continued growth of the Real Estate Investment Trust (REIT) market depends critically on the stock market's ability to provide fair and accurate valuations of real estate. Given the recent surge of REIT initial public offerings (more than $15 billion in the 1993-1994 period), it is important to know whether the stock market provides the REIT market with the same level of information dissemination, monitoring activities, and pricing mechanisms as that for other stocks. This study demonstrates that, when compared with the general stock market, REIT stocks tend to have a smaller turnover ratio, a lower level of institutional investor participation, and are followed by fewer security analysts. Furthermore, the level of financial analysts coverage and stock turnover intensity are higher when the REIT stock market is "hot." The lack of attention from financial analysts and institutional investors in the REIT stock market may have some implications for the well-documented anomalous REIT stock performance.

Are Real Estate IPOs a Different Species? Evidence from Hong Kong IPOs

It is well documented that in the United States, real estate investment trust (REIT) initial public offerings (IPOs) have an abnormally low initial-day return when compared to that of industrial firm IPOs. Researchers suspect that the abnormal return pattern of REIT IPOs is caused by their unique real estate holdings. Examination of 399 IPOs issued in Hong Kong during the 1986-1997 period reveals strong evidence that suggests that underlying real estate holdings cannot be the sole reason for the observed low initial-day return of REIT IPOs. This investigation indicates that there is a need to re-think the current explanations for the abnormal performance of REIT IPOs.

Phenomenological study about enhancing university student's psychosocial wellbeing through YouTube videos: Autonomous Sensory Meridian Response (ASMR) in Finland

The present qualitative study aimed to explore how the attitudes, experiences, and feelings of Autonomous Sensory Meridian Response (ASMR) videos could be used to enhance psychosocial wellbeing similar to mindfulness-based treatment programs. ASMR is an atypical and multisensory phenomenon in which a tingling sensation is often elicited following specific audio-visual stimulations. Although ASMR experiences have been announced to enhance wellbeing and phenomenologically superimposed with mindfulness, there is a lack of research exploring how ASMR experiences relate to wellbeing. In this study, the theoretical underpinnings of the Differential Susceptibility to Media Effects Model (DSMM) by Patti M. Valkenburg and Jochen Peter (2013) are merged with Positive psychology's wellbeing theory (PERMA) by Seligman (2011) for the first time with the objective to explore and link the distinguishing characteristics of ASMR video with wellbeing outcomes. The study entailed two in-depth semi-structured interviews, which were conducted with three university students (one female and two males) in Finland. Interpretative phenomenological analysis with coding schemes was employed and guided by DSMM and Seligman's five domains of well-being. Three main themes and fourteen subthemes emerged from the analyses of the interview transcripts corresponding to the research question. The main themes include ASMR intentional use, ASMR media contents, and ASMR multisensory integration. The subthemes encompass prior ASMR-like experiences, social pressure from family members and curiosity, different types of sound, voices, and movement; nostalgic thoughts, pro-change bias, and positive responses. Exploration of interviewees' narratives further brought to light issues concerning ASMR's emotional effects on wellbeing. Analyses reveal different subthemes clustered into five main themes: Positive Emotion, Engagement, Relationships (Connectedness), Meaning and Making a Connection, and Accomplishment. The findings showed how ASMR videos enhance wellbeing through mindfulness-like experiences. These research findings are significant due to the ASMR videos' potential to increase wellbeing and happiness. Furthermore, their influence can extend to elevating the ability to concentrate on tasks at hand, improving the quality of sleep by stopping rumination, increasing self-confidence, and motivating altruistic behavior. The beneficial potential of ASMR videos to promote psychosocial wellbeing is remarkable

Institutional Investment in REITs: Evidence and Implications

It has been documented that institutional investors did not participate actively in the real estate investment trust (REIT) stock market prior to 1990 and that the percentage of institutional holdings of a REIT stock is positively correlated with the performance of the REIT stock. This article documents a reversal in trend in institutional investors’ preference for investing in REIT stocks and in other stocks. The study shows that prior to 1990, institutional investors invested more of their funds in other stocks than in REITs, whereas after 1990 they invest more of their funds in REITs than in other stocks in the market. The strategies of institutional investors investing in REITs are also analyzed. The findings of the study have implications for the agency and corporate control issues prevailing in the REIT stock market.