مطالب

Efficient market hypothesis predicts that capital markets are beset with cer-tain biases which result from wrong estimation, and negatively influence shareholders’ expectations for higher returns, which in turn affects invest-ment efficiency, financial constraints and corporate performance efficacy in competitive markets, and eventually mitigates firm value. The present study aims at examining the impact of CEOs’ perceptual biases on investment efficiency and financing constraints of the firms listed on the Tehran Stock Exchange over the period 2013-2017. Earnings forecast error and CEOs’ overconfidence biases serve as the measure of CEO’s perceptual biases, the model developed by Biddle et al (2009) is employed to proxy for investment efficiency, and KZ model is also adopted to calculate financing constraints. The results reveal that both earnings forecast error and overconfidence biases negatively affect investment efficiency, while they positively influence cor-porate financing constraints.

In this study, the impact of corporate social responsibility (CSR ) disclosure on idiosyncratic risk has been investigated concerning three stakeholder theory, information asymmetry, and risk management. It also goes further and explores the impact of some corporate governance mechanisms such as ownership structure, board characteristics, and incentive contracts on this relationship. To achieve the research objectives, 142 companies from Tehran Stock Exchange were selected through the systematic elimination method from 2010 through 2018 and the research hypotheses were tested using a combined data regression model with an integrated approach. The results show that CSR disclosure; by increasing transparency, reducing uncertainty, stakeholder satisfaction, and positive market signaling; reduces idiosyncratic risk. It was also found that the ownership concentration and managers’ remuneration by reducing CSR reporting lead to increased idiosyncratic risk, but government ownership, the duality of the CEO’s duties, the independence of the board of directors and the managers' equity decrease the corporate idiosyncratic risk by increasing CSR reporting. However, the effect of managers' remunerations and state ownership on the relationship between CSR reporting and corporate idiosyncratic risk was not confirmed at the 95% confidence level. Overall, from a theoretical viewpoint, a good corporate governance system can improve the quality of CSR, thereby improving corporate social reputation and reducing corporate idiosyncratic risk.

This article seeks to show the representation of gender and Muslim women in Hollywood cinema with a narrative analysis approach. Thus, using the approach of postcolonial theory in the critique of Orientalism discourse and the construction of gender in Eastern and Muslim women, and liberal feminism, Analyzes the narrative of "In the Land of Blood and Honey" (Angelina Jolie, 2011). This film is one of the most important Hollywood films that has dedicated its main narrative to the representation of a Muslim woman. The findings of this study show that the narrative of this film follows Orientalist gender stereotypes and, well, shows the contrast between the liberal and postcolonial feminist approaches. As the Eastern and Muslim woman is humiliated by both her Western sister and her community. Muslim woman in the narrative of this film; Is also the Orientalist object of American cinema; She is subjected to both sexual and gender clichés and is accused of treason against the world system and is considered worthy of death. Narrative analysis of this film can open new perspectives on postcolonial feminism.

In recent years, the importance of thinking skills in education has attracted the attention of researchers. To this end, this study investigated the effect of scaffolding and implicit instructions on the critical thinking skills (i.e., inference, evaluation, analysis, inductive and deductive reasoning) of EFL learners. To this end, 20 EFL learners who were taking an IELTS course at a language institute in two intact classes were chosen as the participants. One group was randomly assigned as the experimental group and their critical thinking skills were scaffolded following Vygotsky’s developmental model of the Zone of Proximal Development, and the other group was assigned as the control group and received implicit instruction for promoting critical thinking skills. California Critical Thinking Skills Test Form B developed by Facione and Facione (1993) was used to check the participants’ critical thinking skills. The results of the paired-samples t-test displayed that scaffolding and implicit instructions enhanced the EFL learners’ critical thinking. The analyses of the independent-samples t-test showed that the experimental group promoted their critical thinking to a greater extent in comparison with the control group. The findings of one-way MANCOVA indicated that by controlling for the pre-tests, scaffolding instruction was more effective than implicit instruction in developing the EFL learners’ critical thinking skills.

Much of what educators address is the overt curriculum; however, there is a hidden curriculum that affects education in a very profound manner. In view of that, the purpose of the present study is to determine the relationship of EFL teachers’ perspectives on hidden curriculum components in the Iranian institutional context with their students’ self-efficacy and national identity. More specifically, the present study surveyed the probable existence of any significant correlation between EFL teachers’ perspectives on the EFL hidden curriculum components, their students’ attitudes towards their own national identity, and self-efficacy. For this purpose, a model was suggested and tested using partial least squares variance-based structural equation modeling (PLS-SEM), to examine EFL teachers’ perspectives on the EFL hidden curriculum components contributing to their students’ national identity and self-efficacy. A total of 164 institutional EFL teachers in Iran completed the EFL hidden curriculum questionnaire. Besides, 987 students (about eighty percent of their learners) were asked to fill in national identity and self-efficacy questionnaires. Based on this model, all the correlations between the latent variables were significant except for three latent variables including the relationships among EFL teachers’ perspectives on the EFL hidden curriculum components (social atmosphere, organizational structure, and interaction between teachers and learners) and their learners’ self-efficacy. In addition, the results depicted all the relationships between latent variables was positive relations; while, the relationship between EFL learners’ national identity and self-efficacy was proved to be negative.