An Econometrical Analysis of the Response Acreage of Potato Crop in Iraq, by Appling the Dynamic Nerlove Model for Period (1990 -2014)

Y. Aldoury, Haifaa; Y. Mohammed, Khalid; Th. Zanzal, Hasan

	An Econometrical Analysis of the Response Acreage of Potato Crop in Iraq, by Appling the Dynamic Nerlove Model for Period (1990 -2014)
Journal of Tikrit University For Agriculture Sciences
Article 1, Volume 17, Issue 4, 2017, Pages 334-341
Authors
Haifaa Y. Aldoury; Khalid Y. Mohammed; Hasan Th. Zanzal
Abstract
The potato (Solanum Tuberosum L.) of important crops, is important because it has a high nutritional value and contains a high proportion of carbohydrates, protein, fiber and many other nutrients for humans useful, a profitable economic crops for higher prices in the global and domestic markets and the increasing demand for consumption, the remains of potato tubers are used as feed for animals. Addressed in this study show potato crop response in Iraq by adopting the cultivated area as a dependent factor, either independent factors are the domestic price of the crop and the area earlier and productivity for the year prior to the year and price risk and production risk factor of time, for the period ((2014-1990 show that there are fluctuations and clear cultivated area, it was applied regression function of linear formula, and the formula for semi Logarithm, the formula semi Logarithm flipped, and formula-double to Logarithm, and choose from the best functions to represent studied the relationship based on the best results obtained in terms of standard statistical tests, and compliance with economic logic. The basic problem for the potato crop in Iraq, in the palaces of the domestic production shortfall in need of consumers, leading to Iraq to import quantities of the crop to fill the shortfall in the production down. The state resorted to in many years to focus on the price factor as a catalyst mainly for the purpose of increasing production and increasing productivity policy, as long as the pricing policies need to know the elasticities of price and supply knowledge of the factors affecting the supply part of the factors that require knowledge for the purposes of planning, hence the importance of conducting more studies and research, including the study in order to identify the most important factors affecting Al presentation spaces and thus the production of this crop. And show us the impact area of previous years on the cultivated area was positive and moral as well as for the price of the crop of previous years has a positive and moral significant impact on increasing the acreage of this crop, while the productivity of previous years was its effect positive and not significant, as well as for price and productivity for risk was the impact negative and positive any farmers the ability to carry around and it was time positive effect on the moral and cultivated crop area. This study aims at estimating the response display potato crop and analysis at the country level models.
Keywords
Potato; The Double; logarithmic function

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