We develop a model of gradual information diffusion based on word of mouth communication. When news is initially released to a small fraction of investors, the expected diffusion rate (the change in the fraction of investors with the news) is initially increasing in time and only then decreases. Assuming risk-averse investors trade when they receive the news, the serial correlation of stock ret...

Return on investment is a driving force that motivates and is a reward for investors. Investment returns are important for investors, in order for the entire investment game to be realized. Evaluating efficiency is the only logical way (Before risk assessment) that investors can do to compare alternative and different investments. Measuring real returns (relative to the past) is needed to bette...

For many investors, it is important to predict the future trend of abnormal stock returns. Thus, in this research, the abnormal stock returns of the listed companies in Tehran Stock Exchange were tested since 2008- 2017 using three hypotheses. The first and second hypotheses examined the non-linearity and non-randomness of the abnormal stock returns ′ trend around the release date of annual fin...

capital asset pricing model (capm) has been among the common models to estimate expected returns rate. since the linearity assumption is considered in the standard version of the capital asset pricing model, estimating beta in nonlinear setting will be inconsistent and bias-oriented. therefore, this study tries to evaluate predictive power of nonlinear capital asset pricing model as well as sta...

BACKGROUND Racial minorities are a rapidly growing portion of the US population. Research suggests that racial minorities are more vulnerable to mental illness due to risk factors, such as higher rates of poverty. Given that the burden of mental illnesses is significant, equal likelihood of mental health services utilization is important to reduce such burden. Racial minorities have been known ...

This article reviews theoretical perspectives explaining the positive relationship between group identification and perceptions of prejudice. In particular, we focus on the prejudice distribution account, which contends that highly identified minorities report more frequent experiences with prejudice than weakly identified minorities, in part, because majority group members do in fact react mor...

Immigrants and ethnic minorities tend to have lower life satisfaction than majority populations. However, current understanding of the drivers of these gaps is limited. Using a rich, nationally representative data set with a large sample of ethnic minorities and matched neighbourhood characteristics, we test whether first and second generation minorities experience lower life satisfaction once ...

PURPOSE/OBJECTIVES To describe common barriers, identify challenges for researchers, and provide strategies for recruitment and retention of ethnic minority groups for cancer nursing research. DATA SOURCES Computerized search of databases, published articles, abstracts, master's theses, and doctoral dissertations. DATA SYNTHESIS Social, economic, and cultural factors present challenges to r...

rgan donation and organ allocation remain important issues for patients awaiting transplantation in the United States. The disparity between the number of deceased donors and the number of patients awaiting transplantation continues to widen each year. The number of deceased donors in the United States has remained stagnant at approximately 5,000 donors per year, while the waiting list for orga...

a r t i c l e i n f o This study examined how priming Whites with colorblind or multicultural approaches to diversity prior to an inter-racial interaction affects ethnic minorities' cognitive functioning. Although ethnic minorities did not explicitly know which prime their White partner received, ethnic minorities paired with Whites primed with colorblindness (vs. multiculturalism) showed poore...