This paper presents an empirical investigation on implementation of activity based cost (ABC) method in hotel industry. The study determines four possible factors of organizational, environmental, individual and technological, which could influence on ABC implementation. The study selects a sample of 205 employees who worked for Laleh International Hotel in Iran. Using one-way t-student test, the study has determined that all variables were effective on ABC implementation while individual factor was the most important one. In addition, correlation test has determined that all variables had meaningful correlations with each other. Further investigation indicates that gender did not play essential role for ABC implementation while experienced employee tended to be more effective for the success of ABC implementation.

This paper presents an empirical study to determine the effects of four different factors including human capital, innovation capital, communication capital and information technology (IT) capital on firms’ return. The study selects the information of 50 selected firms from Tehran Stock Exchange over the period 2007-2013. Using regression analysis, the study has determined that there were some positive and meaning relationships between human capital, innovation capital, communication capital and information technology capital and firms’ return, however, each of these four factors had various effect. Other results indicate that IT capital had the greatest impact on future returns of companies and among intellectual capital components, communication capital had the highest impact on future earnings.

One of the primary assumptions in many project portfolio selection is the availability of all parameters. However, in real-world cases, many parameters are under uncertainty and the exact values are unknown in advance. This paper presents a scenario based mathematical model for project portfolio selection when parameters are under uncertainty. The problem considers two objective functions where the first one maximizes the net present value while the second objective function is the minimization of the positive deviations from the allocation of resources. The second objective function is looking for project resource leveling. The resulted model is formulated as mixed integer programming and the problem is analyzed under different conditions.

This paper presents an empirical study to determine the effects of different factors including present profit, depreciation, working capital, operating cash flow and other accruals on future earnings stability. The study selects the information of 124 selected firms from Tehran Stock Exchange over the period 2006-2012. Using two regression analysis, the study has determined that as the fluctuation of profit increases, the profitability increases too. In addition, the study has concluded that firms with minimum fluctuations preserve more stable profitability. Moreover, firms with higher fluctuation in profitability maintain more volatile profitability for the next consecutive period.

This paper presents an empirical investigation to study the effect of bank ownership concentration on capital adequacy and liquidity on 14 selected private Iranian banks located in city of Tehran, Iran. The study uses a linear regression model where ownership concentration is independent variable, size, leverage, growth domestic product and revenue growth are control variables and liquidity and capital adequacy are dependent variables. Using historical information over the period 2010-2013, the study has determined a negative and meaningful relationship between liquidity and ownership concentration. However, the study has determined a positive and meaningful relationship between capital adequacy and ownership concentration.

Spread plays essential role on market liquidity on any stock market. A high gap between bid and ask price may reduce the likelihood of trading activities while a small gap between bid and ask increases the chance of trade execution. In this paper, we present an empirical investigation on the effect of spread on abnormal return. The proposed study collects the necessary information from official statements as well as historical data over the period 2009-2013 reported on Tehran Stock Exchange to examine the relationship between spread and unusual firm performance. Using regression analysis, the study has determined a meaningful relationship between abnormal return and spread.

This paper presents an empirical investigation to study the effects of teaching contrastive skills of Islam originated from versus of holly book of Quran and cognitive-behavioral for coping on anxiety among some high school students in city of Tehran, Iran. The study uses a standard method developed by Cattell and Scheier (1963) [Cattell, R. B., & Scheier, I. H. (1963). Handbook for the IPAT Anxiety Scale Questionnaire: Self Analysis Form. Institute for Personality & Ability Testing.] to measure the anxiety. The results have indicated that both methods, contrastive skills and cognitive-behavioral, not only could reduce anxiety in short term but also it could reduce the anxiety over the long term period.

An individual with a career faced with various career challenges may experience work-related stress. Work related stress is a factor that threatens employees’ health. The most common negative consequences of stress are particularly the deterioration of performance and efficiency, decrease in productivity and quality of customer’s services, which results in health problems. Work-related stress is a global issue, and banks are no exception. This paper presents a survey to investigate the influencing factors on work stress in banking industry. The study designs a questionnaire and distributes it among 200 randomly selected bank department managers in city of Tehran, Iran. Using principle component analysis, the study has detected five factors including organizational characteristics, external environment, work content, personal characteristics and top management.

In this study, we examine the relationship between corporate ownership and inventory management where corporate governance plays as a mediator. The study selects a sample of 166 selected firms listed on Tehran Stock Exchange using historical data over the period 2009-2013. The study considers the role of managers as shareholder, existence of managers with more than one responsibility and size of board of directors on inventory management. Using regression analysis, the study has disclosed a negative relationship between managers as shareholder and board size on one side and inventory size on the other side. However, the study did not find any evidence on relationship between managers’ dual responsibility as a mediator on relationship between corporate ownership and in inventory management.

In this study, we examine the relationship between GDP, export, import, private sector investment and inflation on insurance per capita of OPEC countries. Insurance is a non-banking institution that by making sure and secure, can make and develop manufacturing and service rendering easier. Insurance companies can make financial steady and reduce stress. So, it plays essential role in economy. For this aim, data over the period 2003-2011 is collected. We use regression and SPSS software for analysis. Results for 80 year – country show that there was a positive and significant correlation between GDP, export, import, inflation and insurance per capita, which shows whenever productivity increases, insurance increases too. Results also show that there was a positive relationship between import and insurance per capita. In addition, results show that there was a positive and significant relationship between inflation and dependent variable. However, there was no significant relationship between exports and insurance per capita. The results show that there was no significant relationship between GDP and insurance per capita and finally, there was a non-significant and negative relationship between private sector investment and insurance per capita.