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The purpose of this article is to find out if the use of different Technical Trading Rules provide higher returns than the Simple Trading Rules and whether the former has a more predicting power when it comes to stock prices. Some researchers have shown that the technical rules have been quit successful in newly established markets such as in Malaysia, Taiwan and Thailand even though they have not been very successful in the markets of developed countries such as in Japan and Hong Kong. Some economists consider the inefficiency of some of today's markets as good opportunities to employ the technical approach to make a profit. This paper examines the level of profitability of trading using the Moving Averages Rules at the Tehran Stock Exchange Market. The results show that using variable length moving average rules yield a higher profitability when compared to the simple trading rules even though the profitability rates are different given different time length. Moreover, it was observed that the short-run moving averages yield better results than the long-run moving averages.

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Tourism is an old concept. Since the 1960's economists in the field of development have referred to tourism as an industry. With the turn of the century the tourism industry has become a major source of income and an important foreign currency provider. According to WTO reports this industry ranks third in securing foreign cash at a worldwide level and after petroleum and automobile industry is the biggest industry. Based on the WTO reports the statistics on tourism have been on an expansion path in all areas. Concomitant with this fact, the planning and investing to take advantage of the benefits of this growing industry has been intense too. Countries with old and historical attractions and ancient monuments have been able to attract more tourists. On the other hand countries with less ancient attractions have tried to attract tourists through other means such as unique recreation centers and natural sceneries. After security, the main factor for the development and progress in the tourism industry in each country is a well established and efficient transportation system. Therefore, paying attention to tourism infrastructure and the underlying facilities such as roads and transportations are major challenges that every country must deal with if they plan to really benefit from tourism. The D-8 countries consisting of Indonesia, The Islamic Republic of Iran, Bangladesh, Pakistan, Turkey, Malaysia, Egypt and Nigeria in their first gathering in the June of 1997 in Istanbul, Turkey formally agreed, among other issues, on mutual and bilateral cooperation in the area of tourism. Therefore, this study is an attempt to evaluate the potentials and also set the grounds for the fulfillment of one of the objectives of the D-8 member states' mandate. In this research a simple method of computing tourism potentials among the D-8 countries for the year 2005 is employed. The results indicate that Indonesia, The Islamic Republic of Iran, Turkey, Malaysia and Egypt have good opportunities in tourism. However, in most cases such opportunities have not been fully utilized..

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The increasing global realization of natural gas as a relatively abundant energy is evident from available data on increasing share of natural gas in meeting world energy requirements. India is one of the countries whose dependence on imported gas are constantly increasing. With large population and growing economy, this country is a main natural gas importer. In this paper, game theory is used to model how to enter Iran, Russia and Qatar into the natural gas market in India. Due to information available for all players, each player guesses his rival strategy, and does not wait for his action. Thus, this game is assumed to be of static nature with perfect information. Nash equilibrium solution was applied to the game among the three countries. Each player has two strategies: (1) to maintain the current market strategy and (2) the market development strategy (to enter Indian natural gas market). Due to rational behavior of three players, the equilibrium is obtained through the market development strategy. In equilibrium, players do not get the best outcome (Nash equilibrium is a balanced equilibrium, which is not established necessarily in a situation where the players have the greatest outcomes.

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In this paper, we will review the foreign exchange market and will try to extract an exchange market pressure and an intervention index for Iran by following the Weymark (1995) approach to evaluate the Central Bank of Iran’s exchange rate policy during 1368:Q1 to 1391:Q3. The estimation method employed, is the econometric technique known in the literature as the Two-Stage Least Squares (2SLS).The exchange market pressure’s mean value of 0.062 provides evidence that depreciating pressure remained dominant over the entire sample period. Also, the  mean  value  of  the  intervention index is 0.44,  indicating that the foreign  exchange reserve and exchange rate changes absorbed  forty-four  and fifty-six percent of the pressure, respectively. Otherwise the results of the paper show that on an average there was a downward pressure on Iran’s currency and the Central Bank of Iran pursued an active intervention policy. Specifically, as the intervention index shows, the Central Bank of Iran used both exchange rate and foreign exchange reserve interventions for restoring the foreign exchange market to equilibrium levels, a policy known as the managed float exchange rate regime.  

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Along with the increased trade integration of countries and the expansion of international production fragmentation, Global Value Chains (GVCs) amount to a huge part of trade today, and participation in a network of trade partners at downstream and upstream of the value chains brings about considerable potentials such as the improvement of the flow of knowledge and more advanced production technologies and techniques, particularly for developing countries. It would not be unexpected for GVCs and participating in them from an environmental aspect to have potential benefits for countries as well.
In this regard, the present study discusses the role that GVCs play in countries' environmental performance. For this purpose, a sample of 65 developing and 36 developed countries was investigated using spatial panel data econometrics, conditional convergence, spatial auto-correlation, and GVCs participation spillover and direct impacts for countries in the form of south-south, north-south, and north-north bilateral added-value trade. The results indicated that there was spatial auto-correlation and conditional convergence based on GVCs for all countries although they are more intense in the case of north-north trade in developed countries. Besides, participation in GVCs has spillover impacts on the trading partner countries if developed countries are included in the bilateral value-added trade but this impact is not statistically acceptable in south-south trade of developing countries according to estimations. Thus, establishing trading relations with developed countries through GVCs is a potentially beneficial policy to improve developing countries’ environmental performance.

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The purpose of this study is to investigate the impact of adding a non-Ricardian household to a DSGE model in choosing the Ramsey optimal monetary policy and consequently the effects on macroeconomic variables (such as output gap, consumption gap, inflation, and rising nominal exchange rate). Therefore, after estimating a model for the Iranian economy, the Ramsey optimal monetary policy was selected from 6 monetary policy alternatives. Then, in two scenarios, a non-Ricardian household is added to the model. In the first scenario, the non-Ricardian household consists of 20% of households and in the second, it consists of 40% of households. Then, Ramsey optimal monetary policy was selected for these two scenarios. The results show that the when the percentage of non-Ricardian households in the model increases, monetary policy-maker deviates from targeting monetary variables and gives more importance to production targeting. Second, if Ramsey optimal monetary policy is chosen without considering the non-Ricardian household in the model, in facing the shock of falling oil prices, the shock of declining money demand and the shock of rising external inflation, the responses of the production and consumption sectors in scenarios 1 and 2 are significantly different from the baseline model. But the consumption and production sectors have almost the same reactions in three models in response to the shock of the rising nominal exchange rate.

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Regarding the importance of knowledge-based capital in the modern economy, this paper aims to measure this kind of capital in Iran’s manufacturing sector using the exploratory factor analysis method. Data include active firms in Iran’s manufacturing sector at the 2-digit ISIC level over the period 2002-2018. The results indicate the existence of a factor in the manufacturing firms with a positive and increasing trend of knowledge-based capital accumulation. The findings also show that the accumulation of this type of capital in Iran’s manufacturing sector is in the early stages of development and highly depends on the literate labor force.