درخت حوزه‌های تخصصی

The purpose of this paper is to explore the impact of industry competitive intensity on brand performance that marketing capabilities and market-focused learning and organizational innovation have the mediator role. Survey of top firms of Tehran Stock Exchange for the last 4 years is explored. We used questionnaire for gathering data and 77 firms of 92 responded to the questionnaire . In order to test the validity of the questionnaire Dillon - Goldstein (cρ =0/70) coefficient used. AVE was used to assess the validity of indicators that show the validity of the questionnaire have been favorable .This study analyzed the data in two levels of descriptive and inferential statistics using Smart PLS ,Spss18, Excel2007. To calculate the significant path coefficient and to gain the test statistic T we used Astrab boot ( via insertion of the sampling method ). The results show that industry competitive intensity has a positive and significant effect on brand performance and all hypotheses were confirmed . The mediation effect of marketing capabilities and market-focused learning and organizational innovation was approved too.

Being aware of the waiting time for selling residential units is one of the important issues in the housing sector for the majority of people, especially investors. There are several factors affecting the waiting time for selling residential units. Determining the influential factors on the time period of selling real estates can lead to an informed decision making by real estate consultants, sellers as well as those seeking to buy real estates. Using a real estate database in Iran, the present paper proposes a two-module procedure. The first module deals with implementation of association rule mining. Using the well-known association rule mining techniques namely FP-Growth, several association rules have been extracted which indicate the effective factors on the waiting time for selling residential units. Generated association rules have been evaluated based on metrics such as support, confidence and lift and finally the best rules are selected. The main objective of the second module is to develop a fuzzy inference system which can determine the factors influencing the waiting time for selling residential units from historical data, so that the model can be used to estimate the time it to sell the property for a real estate agency. Several IF-THEN rules are extracted from this module. Extracted rules can be used by real estate agencies as well as buyers and sellers of residential units to make better decisions in their investments. In conclusion section, a number of suggestions for future studies are presented. For example, machine learning algorithms such as neural networks, decision trees, etc. can also be used to predict the duration of residential units’ sale. The main objective of the second module is to develop a fuzzy inference system which can learn about the factors that influence the waiting time for selling residential units from historical data, so that the model can be used to estimate the time it takes to sell the property for a real estate agency. Several IF-THEN rules are extracted from this module. Extracted rules can be used by real estate agencies as well as buyers and sellers of residential units to make better decisions in their investments.