s tructural change is defined as a change in the relative weight of the important constituents of the macro-economic indicator such as production, taxes, imports and exports, workforce etc. since the structure change is one of the main reasons for the growth and economic development of countries, the investigation of the trend of changes in economic important constituents is important. tax as a...

abstract: this paper discusses two topics. at first, it uses continuous wavelet (morlet) transform, coherency, and phase angle analysis to study the effect of mean volatility in opec crude oil prices, wti crude oil prices, brent crude oil prices and iran’s crude oil prices on the iran’s reer. to this end, the monthly data of the variables for years 2003 to 2012 is used. coherency analysis revea...

this paper reviews the relationship between inflation rate and minimum wage in iran’s economy over the 1969-2005. according to the economic literature, there is a narrow relationship between inflation rate and minimum wage. some economists believe in increased inflation due to minimum wage. the other group of economists considers the increased inflation as a cause for increasing minimum wage. t...

This paper characterises optimal monetary policy in an economy with endogenous …rm entry, a cash-in-advance constraint and preset wages. Firms must make pro…ts to cover entry costs; thus the markup on goods prices is e¢cient. However, because leisure is not priced at a markup, the consumption-leisure tradeo¤ is distorted. Consequently, the real wage, hours and production are suboptimally low. D...

abstract this paper sketches a model of product differentiation according to the hedonic hypothesis that is based on the theory of consumer behavior of lancaster (1971). lancaster suggested that utility is derived from the characteristics of the good and not the good itself. thus, from the perception of the consumer, every characteristic has a price. this is the hedonic (or implicit) price. we ...

abstract in this paper, markov chain and dynamic programming were used to represent a suitable pattern for tax relief and tax evasion decrease based on tax earnings in iran from 2005 to 2009. results, by applying this model, showed that tax evasion were 6714 billion rials**. with 4% relief to tax payers and by calculating present value of the received tax, it was reduced to 3108 billion rials. ...

the main objective of this paper is to evaluate the effect of r&d on profitability of high -tech industries with new evidence from the iranian industries carrying four- digit codes. the structure- conduct- performance (scp) paradigm, which is relatively well known in industrial economics and in organization management, provides the theoretical construct that guides our empirical model formu...

abstract oil export revenues have a major share in both iranian government incomes and gross domestic product (gdp). with regard to the importance of agricultural sector in economic growth, rural development and rural welfare improvement, this sector indubitably influenced by temporary and unexpected shocks in oil export. therefore we employed feder(1982) and auto-regressive distributed lag (ar...

t he objective of this study is using the markov switching vector autoregressive method and regime dependent impulse response functions to measure the pass-through of world food prices to consumer price index in iran from 1990 to 2013. with respect to information criteria and the log-likelihood ratio statistic, msia(2)-var(1) model has a better fit to data than other models. the magnitude of th...