introduction: poultry is an important commodity for household consumption. in recent years, price fluctuation for this commodity has caused an uncertain condition for consumers and poultry prices over the past two years has changed a lot. this has caused many changes and uncertainty in a purchase decision. analysis of changes and volatility modeling can be a great help to predict the poultry pr...

This paper shows how reported recreation values can be systematically underestimated when they are derived from price coefficients. Simulations show that these publication selection biases can be very large. Because selected price coefficients are transformed into estimates of value, conventional meta-analytic methods used to deal with publication selection will often make the bias worse. Simul...

In this research, the DCC model is estimated to calculate dynamic correlation series between crude oil price and growth of Industry and Mine sector during 1367:1-1392:4. Then, Macroeconomic variables which can explain the dynamic correlation are analyzed as variables of contagion. So, the import, as an effective and affected variable from crude oil price, is separated to real import of consumpt...

The main objective of this research is to analyze the impact of oil price volatility on the economic growth of Pakistan. Secondary data from 1973 to 2011 were used to estimate the coefficients. Linear Regression analysis is used to analyze the dependency among the dependant and independent variables. All variable Oil price, Oil supply, oil demand, Gross Domestic production, Public sector invest...

The behavior of the approximate solutions two-dimensional nonlinear differential systems with variable coefficients is considered. Using a property solution, so called conditional Ulam stability generalized logistic equation, solution system investigated. obtained result explicitly presents error between limit cycle and its approximation. Some examples are presented numerical simulations.

in recent days which organizations provide spirituality at work, employees bring more efforts at work and are aligned with organization vision. the aim of this paper is studying the relationship between spirituality at work and engagement at work that are empirically examined at jahad keshavarzi organization of qom. for measuring spirituality at work, the millimans' questionnaire and for e...

Query suggestion is a technique for generating alternative queries to facilitate information seeking, and has become a needful feature that commercial search engines provide to web users. In this paper, we focus on query suggestion for price comparison search engines. In this specific domain, suggestions provided to web users need to be properly generated taking into account whether both the se...