درخت حوزه‌های تخصصی

Information flow is a key parameter in an economic activity that acts as the main factor in the capital market emergence, stability, and efficiency. The purpose of the current research is to investigate the effect of the environmental points of cooperate governance on the pricing of information asymmetry. In this regard, we have extracted data related to companies accepted in the "Tehran Stock Exchange" from 2009 to 2018, and a panel-data regression model was utilized to test research hypnosis. The results show that information asymmetry and environmental points of cooperate governance have a significant effect on the expected return (cost of capital) on an investment. In addition, the effect of environmental points of cooperate governance on the relationship between the information asymmetry and the cost of capital has been verified. Finally, the results show that environmental points of cooperate governance leads to the differences in the cost of capital in the different levels of information asymmetry.

The relationship between identity and language learning has attracted the scholars` attention in the fields of second language acquisition (SLA) with considerable focus on social and cultural dimensions of language learning. However, relatively little research has been devoted to examining the identity construction of language learners in virtual communities of practice despite the global trend of foreign language instruction. Consequently, the current mixed methods classroom-based study investigated whether the implementation of intercultural movie clips in virtual communities of practice could contribute to social and cultural identity improvement of participants in the English as a foreign language (EFL) context. To achieve this goal, two intact classes in an institute were assigned to experimental and control group, each containing thirty EFL learners. This study was implemented on the pre-test post-test equivalent-group design. Drawing on quantitative and qualitative analysis, using two questionnaires, and a semi-structured interview, the results indicated that positive changes took place in social and cultural identity of the participants. Moreover, by getting access to new social, cultural and linguistic resources and as a result the adoption of new identities, some special features such as fewer psychological barriers to understanding others, increasing courage to accept new norms, and feelings of unity and equity were obtained by the learners.