پژوهشنامه اقتصاد و کسب و کار
سال سوم شماره 1 (پیاپی 4، زمستان 1391)

By employing conditional variance modeling and Granger causality test, we specified and compared the linkage between inflation and inflation uncertainty in Iran and three other OPEC members. To achieve this purpose we used consumer price index quarterly data for the years 1985-2009. The results suggest strong evidence that shows that in all these countries the increase in inflation leads to increase in inflation uncertainty. But in reverse, only in Iran and Venezuela, a causal relationship from inflation uncertainty to inflation can be found

The main objective of this research is to investigate the effect of loyalty on the repurchase of the customers of the dairy products. In order to gather the information in the field of investigation, two methods of library studies and field studies using the index cards and questionnaires tools for measuring the research variables was used. The research population was the customers of the products of the Kaleh dairy company, which used to purchase from Refah chain supermarkets of Tehran city. The random cluster sampling method for determining the respondents to the questionnaires was used. A total of 450 Questionnaires was distributed that 386 responses of them were usable for data analysis. Data were analyzed using the structural equation modeling (SEM) techniques.The research findings indicate that the customer trust, involvement, commitment and word of mouth does not have any direct effect on their repurchase. But the customer satisfaction has direct effect on repurchase. Also the customer involvement has direct effect on their satisfaction. On the other hand, the customer satisfaction has direct effect on their trust, commitment and word of mouth which among them the customer's satisfaction has the most effect on the word of mouth of the dairy products.

With respect to increasing importance of keeping customers and using relationship marketing by organizations around the world, the current study is done to identify effective factors of relationship marketing customers’ loyalty in Kerman Balan agency. In this study, relationship marketing model is used to analyze effective factors on the customers’ loyalty in the agency. The study is done using a questionnaire and four factors including (trust, commitment, conflict handling, and communication). This questionnaire is distributed among 80 customers of Kerman Balan agency. This research is a descriptive survey in which the relationships among independent and dependent variables have been examined considering the data collected through questionnaires. By doing chi-square test, normality of the frequency of the provided answers is used.Using Pearson coefficient correlation, a significant relationship was found among 4 factors. The research hypotheses were approved by t- test. Using Friedman test, the factors were ranked based on their importance as follow: 1. Trust, 2. communication, 3. Commitment, 4. Conflict handling.

In this survey as a case study, the mutual effects of Tehran - Stock Exchange - Price Index (TEDPIX) and Iran's economic growth have been investigated. To do this, the data about the above variables during 1999-2010 has been collected through quarterly data and by econometric method evaluation, especially Johansson's cointegration test and vector error correction model, the mutual relationship between the variables has been dealt with.The results of Johansson's cointegration test showed that there is a long term balance relation in the above variables. Also the results of the vector error correction method showed that there is a unidirectional relationship between the above variable from economic growth to Tehran - Stock Exchange - Price Index (TEDPIX).and consequently demand side approach was approved in improving fainancial markets.

According to the role of operating performance in economical entities and importance of intellectual capital and capital employed effects on value creation, the purpose of this paper is to analyze the role of intellectual capital and tangible assets on firm`s financial, operating and stock market performance. To conduct the relevant analysis in the present study, three dependent variables of operating income/sales (OI/S), return on assets(ROA) and MB were used as proxy measures for economic, financial and stock market performance, respectively. The sample consists of 80 firms from Tehran stock exchange for the period 2006-2010 by applying VAIC pulic`s model.The results show that companies’ IC has a positive impact on operating, financial and stock market performance. This result supports the importance role of intellectual capital in value creation.The results also indicate that capital employed remains a major determinant of operating, financial and stock market performance although intellectual capital has more effects on stock market performance than capital employed

Despite the increasing popularity of viral marketing, the key factors influencing the new marketing strategy remains unknown. This paper examines one of the critical factors, Companies contacts motivations to pass along electronic message. The study of the theoretical background and field marketing, Research on the potential factors: 1.need to be part of a group. 2. need to be different. 3. altruism. 4. the need for personal growth on a number of electronic messages for others to investigate. We also investigate if high trait curiosity can indirectly lead to more forwarding by increasing the amount of electronic message consumed. Results of the study on a sample of over 300 Islamic Azad University students was conducted, show that Companies contacts, who are more individualistic and/or more altruistic, tend to forward electronic message than others

Forecasting business cycles is very important in macroeconomic and it is an important part in process of economic decision-making and policy. In recent years, non-linear models have been considered more for forecasting economic variables and application of these models has been made a significant improvement in modeling of the behavior of variables in the area of macroeconomic and particularly financial economics. This article provides a convenient and powerful model for forecasting business cycles by using smooth transition regression (STR). The results show that very little error that indicates model performance is acceptable.

Stock Liquidity risk can be thought as one of the factors affecting the investors expected return. Clarifying a measure according to the specifics of the company to measure the stock liquidity could help the investors to make better decisions. In this study, we examine the relationship between assets liquidity and stock liquidity in hole of druggist firms listed in Tehran Stock Exchange during the years 1387 and 1388. We use the turnover ratio. The results show that there is a significant relationship between the assets liquidity and stock liquidity. This relationship depends on market expectations regarding the deployment of the firm's liquid assets. Thus our hypothesis links stock liquidity to managerial actions that change the liquidity of the firm's assets, such as investment financing, and payout. Consistent with my prediction, I find that after controlling for firm fixed effects, increase in asset liquidity increases stock liquidity, too.The relation is stronger when the manager is less likely to convert liquid assets into illiquid assets such as for low market to book, during economic recessions, and when expected payout is high.