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The main purpose of this paper is to examine the effect of merger, concentration and credit risk on the efficiency of Iranian Banking industry. To measure the efficiency of Iranian banking system, we have used the data of commercial & specialized bank's balance sheets during 2001-2007, and a parametric approach to estimate two empirical models. To estimate efficiency measures and determining main factors affecting the measures, we have used a Logarithmic - Linear form of a random Translog cost function. The results of the first estimated efficiency model show that the average efficiency measure of banking system in Iran is 54% and that the merger of the more inefficient banks within the efficient bank will cause the average efficiency measure rise to 70% The results of the second model - assessing the effecting factors on efficiency- show that the efficiency of banks has an inverse relationship with the concentration (competition in banking industry), and a direct relationship with the IT index (e-banking activity) and the facilities to assets and capital to assets ratios (as the indices of the credit risk).

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The unequal allocation of economic resources, or other resources of wealth, regarding to the efficiency among the factors of production, is considered as one of the most important condition of optimal resource allocation in the market system. In other words, the market mechanism in the process of allocating resources among the factors of production rewards to the resources with higher returns. So, the article’s main question is whether the unequal distribution of votes similar to the unequal distribution of money, can be applied in the process of the optimal allocation of citizens' benefits in the democracy system? The answer of this question has been given by the monetary model which is similar to the democracy, using the concept of Anthony Downs’s (1957) rational voter hypothesis, the idea of Paul Samuelson's (1958) monetary economic model, the microeconomic theory of consumption and just one of the major components of the market –the unequal distribution of money–. Using the designed model, we can survey several statuses, Such as: vote exchange possibility (similar to the barter economy) and weighting of votes. The article’s results show that the social contract possibility for exchange and the ability to save money causes to change of the shape and nature of the money from public goods to private goods and the interest rate creation. In this situation, one of the important findings of Samuelson model of monetary is appeared in the space of voting theory. One of the contributions of the monetary model of Samuelson is that one of the origins of the monetary interest rate is population growth. The other results show that the weighting of buyers in the monetary model design under conditions can be led to more efficient choices and social welfare increase ultimately. KEYWORDS: Democracy, Market, Political Market, Money, the Weighting of Votes, Downs’s Rational Voter Hypothesis, Samuelson's Monetary Economic Model.

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The purpose of this paper is to investigate the source of fractional reserve banking and to review the literature on bank credit. Evaluating the operational procedure of this banking model demonstrates a new concept of credit money shaping aspect and its affect on the practical economy. The difference in due dates between depositing and receiving loan that causes Ex-nihio money to exist, the effect of this money on prices along with economic instability are among the issues that have occupied the critic scholar's minds in fractional reserve banking realm. In this paper, the effects of the fractional reserve banking model on the consumption behavior are analyzed. Also, the view points of the critics of this banking model are addressed. In this regard, an inter-generational consumption behavior model based on Maurice Allais's perspectives has developed. Results show that optimizing the existing model is the true test of the consumption instability in a permanent state in the fractional reserve banking realm. Also, according to the results there exits the possibility of instable capital repletion under certain circumstances.

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Simple sum monetary aggregation approach that based upon perfect substitution of monetary components assumption is inconsistent with microeconomics theories. In this research, using quarterly data of Iran over period 1370:1–1388:1, we first calculate monetary aggregation based on divisia index for both measures of money (M1, M2) and then estimate the demand functions for money for divisia and simple sum monetary aggregations separately. The results show that the adjustment speed of divisia aggregations is more than that of simple sum aggregations and the demand functions for money that construct by divisia aggregations, are more stable.

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Money is a facilitator of economic activities, thus, formatting of economic activity is dependent on the institutionalizing of monetary system. In common monetary system, the weakness of common perception about money, publishing and distributing mechanism led to inefficiencies in optimal allocation of resources and welfare cost of inflation tax. Partial equilibrium model in compare with general equilibrium model, underestimate welfare cost of inflation tax. Therefore, in dynamic optimization model, the equation of welfare cost of inflation tax, in addition to general equilibrium model of Lucas, derived from theoretical correction of demands for real money balances. Then welfare cost compared theoretically and experimentally in partial and general equilibrium model. Theoretical and experimental results indicate that the welfare costs of inflation tax in general equilibrium models, is an upper bound of partial equilibrium models. Also, given that the elasticity of demand for money in regard to the nominal interest rate, the welfare cost of inflation tax increases with nominal interest rate and inflation.

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IN ACCORDANCE TO DEVELOPMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY IN IRAN, ELECTRONIC BANKING HAS BEEN DEVELOPED IN RECENT DECADE.‌A MEANINGFUL TRANSFORMATION HAS BEEN PLACED IN THE STYLE OF EXISTING BANKING SYSTEM SERVICES, BY SIGNIFICANT INCREASE IN THE USE OF ELECTRONIC BANKING TOOLS IN TEN YEARS. THE REFLECTION OF THIS PHENOMEN IS CLEAR IN THE BEHAVIOR OF PEOPLE AND BANKING SYSTEM WHO CARE ABOUT CASH, MONEY DEMAND PREFRENCES AND VARIATION IN THE COMPOSITION OF BANK RESOURCES.THEREFORE EFFECTIVENESS OF E-BANKING ON VARIABLES SUCH AS MONEY DEMAND IS A TOPIC WHICH APPEARS ESSENTIAL TO STUDY. DEMAND MONEY FUNCTION IS ONE OF THE MAIN IMPORTANT PARTS OF MONETARY SYSTEM AND PLAY CRUCIAL ROLE IN TRANSMISSION OF MONETARY POLICY TO THE REAL ECONOMIC SECTION. THE IMPACT OF THIS ON OTHER COMPONENT OF ECONOMIC SYSTEM, BOTH MONETARY AND NON-MONETARY IS INEVITABLE. IN OTHER WORDS, TO ANALYZE MONETARY ISSUES AND SOLVING THE PROBLEMS, IT IS NECESSARY TO UNDERSTAND THE NATURE OF MONEY DEMAND. IN THIS PAPER, THE DEMAND FUNCTION HAS BEEN ESTIMATED BY USING AR METHOD AND ENTERING EXOGENOUS VARIABLES IN MARKOV SWITCHING VECTOR AUTO REGRESSION MODEL. FOR MODELING OF MONEY DEMAND FUNCTION, SEASONAL DATA BETWEEN 2002‌ TO 2011 HAVE BEEN USED. ALSO THE EFFECT OF TRANSACTION VOLUME THROUGH POINT OF SALE(POS) AND AUTOMATIC TELLER MACHINE (ATM) AS EN-BANKING INDEX HAS BEEN DETERMINED. ACCORDING TO STABILITY TESTS, ESTIMATING THE MONEY DEMAND WICHE CONTAIN EN-BANKING VARIABLES IS UNSTABLE. THERFOR, IT CAN BE STATED THAT THE RESULTS OF FISCAL AND MONETARY POLICIES OF THE CENTRAL BANK AND THE GOVERNMENT TO ACHIEVE ITS GOALS DUE TO UNCERTAIN DEMAND MONEY POSITION, SOMETIMES IS REVERSED.

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The specification of money demand function is one of the most important and disputable subjects in economics. With regard to its importance, many of economists have represented several theorizes about money demand. The Sidrauski monetary model is an interesting theory of money demand. Sidrauski extended Ramsey model with regard real balance of money which in the Sidrauski model the utility function involves both consumption and money. Application of Sidrauski model can help to extend macroeconomics with micro foundations in Iran and prepares new scopes for researchers. The main aim of this paper is to estimate the Sidrauski monetary model for Iranian economy over the period of 1979 -2011. For this purpose, the Engle – Granger, ARDL and Johansen- Juselius approaches have been used for estimation of long run relationship of money demand. The empirical results of econometric estimation of co-integration vector indicated a long run relationship between per capita money demand, per capita consumption, and inflation rate, rate of interest, exchange rate, per capita income, and stock exchange price index. Our results showed that per capita consumption and per capita income have positive and significant effect on per capita money demand. Whereas inflation rate, rate of interest, exchange rate and stock exchange price index have negative and significant effect on per capita money demand.

  

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This paper seeks to investigate and analyze the money demand function and its Engle curve in Iran. Money demand function and its Engle curve have been estimated through EASI demand system by making use of monthly data 1995:04-2007:03. The investigation of money demand function shows that monetary elements are weak substitutions of each other. Thus, some policy recommendation is provided on the basis of estimated elasticity (Income, Price, cross Price, and Morishima). Moreover, the investigation of Engle curve reflects that by the increase of income, first, individuals extract their money from demand deposit. Secondly, investment in timed deposits increases and thirdly, no change is observed in the amount of money being held as currency and travel checks.