In recent years the most salient change in global food sector has been witnessed range of fisheries. Due to gravity fishery, particularly meeting needs an adequate and balanced diet, its total share production, consumption trading on rise a scale. The aim this study is detect factors impinging upon growth trend foreign trade fishery sector. To that end, data from 1990-2017 period 10 countries 7...

From 1979 to 1989, growth in U.S. real gross domestic product (GDP) slowed to only 2.5 percent per year. From 1989 through the first half of 1992, growth has slowed further to only 0.5 percent, with growth reduced about 2 percent below normal due to transitory cyclical factors. Thus, either way you look at it, what is alternately termed trend, secular, steady-state, or capacity growth has slowe...

in the present study iran’s rice imports trend is forecasted, using artificial neural networks and econometric methods, during 2009 to 2013, and their results are compared. the results showed that feet forward neural network leading with less forecast error and had better performance in comparison to econometric techniques and also, other methods of neural networks, such as recurrent networks a...

Satureja hortensis L., (summer savory) is an annual, herbaceous aromatic and well-known medicinal plant. S. hortensis essential oil has a high percentage of carvacrol which is responsible mainly for its biological activity. The biomass production, essential oil composition and mineral content of Satureja hortensis are known to be dependent on its growth and development conditions. The aim of th...

We investigate the power and size performance of unit root tests when the true data generating process undergoes Markov regime-switching. All tests, including those robust to a single break in trend growth rate, have very low power against a process with a Markov-switching trend growth rate as in Lam (1990). However, for the case of business cycle non-linearities, unit root tests are very power...