---

The locus paper in topic “Expectations and Neutrality of Money” (1972) is a seminal paper. This article was written in Over Lapping Generation (OLG) model with received from rational expectations and to draw up in stochastically mathematic. Results of this paper were reference to Phillips Curve as a solution of the equilibrium systems. From Lucas paper time to now, many of studies was proceed to Lucas model and results, But nor of them no attention to his results in non stochastic space, stochastic allocation of old people and growth existence in labor force. Central question of our study is test of results and behavior of Locus base model with these subjects. Method of our study is using of mathematical solutions and foundation analysis. The most important result of our study is this: The results of this study by criticism and expansion in Lucas model will acquire some of contributions in OLG models. This results show that some of Lucas results will impressible when we change its basic assumption, but we can’t use Lucas results in price equation for supported and analysis of classical school theorems.

---

By a transient glance at the Iranian government budget, it is found that in almost all years, a large amount of the Iranian government budget deficit is provided by issuing money. Money issuing through inflation and real economic growth, leads to increased revenue for the government. Through increasing the general level of prices and decreasing the purchasing power it leads to the concept of “inflation tax” which is taken from people without their awareness. By real economic growth, more real balance will be demanded for transaction of additional production. In such a condition, the government by paying credit money takes the possession of the goods and services which have inherent value. Regarding the importance of growth in macroeconomic discussions, in this study, the relationship between seigniorage and per capita income growth by using econometrics models has been analyzed. Using time series data for 1966 – 2007 the econometric models have been estimated through CLS approach and threshold level of seigniorage is assessed. The results show that seigniorage has meaningful and negative effect on the economic growth at more than 3.5% but its effect on economic growth less than 3.5% is neutral.

---

This study examines the relationship between financial sector development and poverty reduction in the Iranian economy during 1973-2007. To explore a long-term relationship between variables, Bounds Testing Approach of Pesaran and others (2001) was used and to investigate the interface and causality between financial sector development and poverty reduction Dolado and Lutkepohl’s approach and causalty test (1996) was applied. In this paper for showing financial development, three alternative indicators and for representing poverty  the cost of private consumption per capita are used. Results from this study indicate a long-term relationship between variables in the model. Dolado and Lutkepohl causality test results also show that financial development is not effective in poverty reduction .

---

This research examines the effect of monetary policies on unemployment under inflation uncertainty in Iran using the annual data during 1974-2011. The basic model is selected according to the simultaneous equilibrium of dynamic aggregate demand and supply. In addition, inflation uncertainty is calculated using the GARCH family models including ARCH, GARCH and EGARCH. The generated data from a novel model is considered as a proxy for inflation uncertainty, and Generalized Method of Moments (GMM) is used to estimate this model. The estimation results show that inflation uncertainty reduces the unemployment rate, i.e. the effect of monetary policies on unemployment is decreased under inflation uncertainty, and there is a significant and positive relationship between unemployment and inflation rates. Henceforth, an increase in inflation uncertainty leads to an increase in unemployment rate, which is in line with Friedman's theory in this field

---

This research examines business-cycle fluctuations by using Knowledge-based Economy Index (KEI). Data have been collected using consolidated method in 116 countries over the period 1990 -2012. Impact of business cycles' fluctuations has been studied according to the level of the countries' economic knowledge. In this classification, countries were divided to three categories: high, medium and low knowledge-based economies. The generalized method of moments (GMM) and system of simultaneous equations were used to estimate the models, and differential equations were applied for interpreting the results. The findings are described in three parts: top countries with high KEI scores experience decreasing and damped business cycle fluctuations. Those oscillations are convergent, and knowledge-based supply and demand in these countries are proportional. The countries with medium KEI scores have stable and iterative business cycle fluctuations, their movements are nearly convergent, and supply and demand are almost knowledge-based. The countries with low KEI scores are capable of instable and very high business cycle oscillations, and there is knowledge-based demand in these countries, but there is no appropriate supply with it, which results in divergent movements in business cycles.