درخت حوزه‌های تخصصی

The exchange rate is one of the crucial and effective variables in the economy of countries and contributes to the current and future economic conditions of every country significantly and undeniably by impacting many economic variables. Thus, selecting an optimal exchange system is imperative for countries. This study has investigated effective economic and political factors in selecting exchange regimes in three groups of developing countries, i.e., low-income countries, lower-middle-income countries, and upper-middle-income countries in the 2000-2018 period using the logit panel method. The results showed that for the lower-middle-income countries, the escalation of the trade balance increased the likelihood of selecting a floating exchange rate regime, and the uptrend of the Human Development Index (HDI) decreased the probability of choosing a floating exchange rate regime. Concerning the lower-middle-income countries, the upsurge of civil liberties and HDI diminished the likelihood of selecting a floating exchange regime, and the rise of the inflation rate increased the possibility of choosing a floating exchange regime. Finally, considering the third group, i.e., upper-middle-income countries, the increase in the Gross Domestic Product (GDP) made the selection of a floating exchange regime more likely, and the HDI elevation enhanced the probability of selecting a fixed exchange rate.

The development of knowledge and advancement in technology has created a wide-ranging transformation in societies and has led to changes in the per-formance of companies in order to respond to environmental turmoil and social expectations. In this way, they tried to gain a significant competitive advantage over other competitors. The purpose of this study was to investi-gate the moderating role of managerial fortification in relation to the impact of technology-based capabilities on the product market competition of knowledge-based companies in the capital market: a source-based capabili-ties (DEA). This research is applied in terms of purpose and in terms of data envelopment analysis is a quasi-experimental and post-event research in the field of positive accounting research. Then, based on multivariate regression, the research hypothesis was tested using Eviews software. The statistical population studied in this study consisted of knowledge-based companies listed on the Tehran Stock Exchange during the years 2015 to 2019 and 79 companies were selected and reviewed based on systematic screening. The result of testing the research hypothesis is that the technological capabilities have a positive and significant effect on the product market competition of knowledge-based companies in the capital market. This result demonstrates that the resource-based technology capability based on the source-based capabilities is seen as a resource against stagnation in a competitive environ-ment and helps the company, to maintain flexibility in the face of environ-mental change in order to respond faster, at the same time to develop the company's competitive capacity to create new resources or new and innova-tive products, and to make the company's future more attractive to stake-holders with greater returns and potential risk control.