Economics & Political Science

أثر العلاقة بين حجم العينة والانحراف المعياري علي قوة الاختبارT لتوزيع بواسو

د. فخرالدين الحاج إسماعيل — 2023-02-19

Abstract:

This paper aimed to recognize the power of statistical tests and that is to test the (T) of the sample per data that follow a Poisson distribution, which emanated from the Monte Carlo method to simulate the samples and the data generated from alternative distributions which follow a Poisson distribution. They are generated in 1000 various sizes from all distributions given and then determine the power of the test by comparing the test with the standard sample.As represented in the study, the problem of lack of recognition to the ways in which they can control the properties of the statistical test, and thus lead to no increase in the accuracy and strength of the test. The study also aims to develop a test of significance (importance) as an objective method by which to analyze the strength of the statistical test and its relationship to the level of statistical significance and magnitude of the impact through the analysis of the data generated using a program (MATLAB), and which has been reached on a number of the most important results that the greater the sample size increased the statistical power of the test (T) increases and also the value of a beta, and through the statements that follow a Poisson distribution, and therefore the higher the standard deviation less than the value of test and increase beta, according to data that follow a Poisson distribution value. Therefore this paper delivered (gave out) a number of recommendations, including: the researcher reaches at an appropriate sample, which gives tangible results interesting measure of statistical significance test that lies in increasing the power of the test and reduce the size of the beta value.

دور السياسة العامة الإستخراجية في مكافحة الفقر في الجزائر خلال الفترة 2000-2017

حاجي عبدالحليم — 2023-02-20

The phenomenon of poverty is a multi-faceted phenomenon that is not related to specific circumstances and is not limited to a people in itself. It is a social phenomenon with economic dimensions, political reference and solutions that maintain complementarity among the various aspects that exist. The political system in Algeria has improved performance by mobilizing human and material resources to build A strong economy, ensuring the provision of methods to help eliminate poverty and reduce the number of poor through reliance on extractive policies, has achieved acceptable results in the fight against poverty in Algeria during the period 2000-2017.

الهجرة إلى إسرائيل الماضي والحاضر

د.عبداللطيف محمد سعيد — 2023-02-20

تتناول هذه الورقة الهجرة إلى إسرائيل، بعد أن توضح أنواع الهجرة وأسبابها في محاولة لتوضيح المراحل التي مرت بها الهجرات الإسرائيلية، وكيف أنها كانت تحت دعوى العقيدة اليهودية في ظاهرها، وان الهجرة إلى إسرائيل كانت بهدف إقامة دولة في ارض الميعاد، كما توضح الورقة كيف اثر تطور العلاقات العربية الإسرائيلية على الهجرة إلى إسرائيل.

وتحذر الورقة من المهاجرين العائدين من إسرائيل

الإستثمار في السودان الفرص والتحديات (الألبان ومنتجاتها نموذجاً ) (الفترة من 2010-2019م)

د. محمد حماد عبدالله عبدالرحيم — 2023-02-20

The agriculture is considered both plant and animal back bones to sudan economic it has acomperative advantage in this sector it was represented its vast territory and his fertility

The study problem comes in search of and answer of mean question its traditional herding and seasonality of production contributed to weakness investment of mails and their products sector in sudan

The study assumed several hypotheses which of weaked in milks and their product to the volume of consumption

The study reached many results including traditional herding and seasonality of production contribution to weaked investment in milks and their products in sudan

The study recommended several recommendations among them in the necessity to encourage investment domestic and foreign in milks and their production sector which contributes to covering the deficit to domestic and export surplus foreign worlds

أثر فترة الابطاء على مشتقات البترول فى السودان للفترة 1970-2014م

د.الهام احمد ابراهيم زين العابدين — 2023-02-20

Economic countries suffer from regression functions sometimes suffer from auto correlation problem, which affects the economic variables. The study aimed to check the existence of the auto correlation problem in the consumption function of the petroleum products. for the period from(1970-2014) The study problem: is the consumption function of the petroleum goods suffer from the auto correlation problem? the study hypothesis :the consumption function of the petroleum goods suffer from auto correlation problem . Importance of the study :the demand of the petroleum goods is very important and increasing in the spite of the increasing in the price .The methodology of the study : the study used the descriptive analytical method and applied (OLS) and ( E-views) programs on time series data collected from the annual reports about the consumption function of petroleum products and petroleum consumption ,prices petroleum , growth national income , and inflation of the consumption function .The results of the study :the demand for the petroleum goods depends on the current income for the top level of the previous income? , means the time series model for the consumption function of the petroleum goods suffer from the auto correlation problem .The study recommended that the makers of macro policies should care for relation between the independents variables which are effects on the consumption function of the petroleum goods to maximize the consumption .

أثر التمويل المصرفي علي التنمية الإقتصادية بولاية شمال كردفان في الفترة من 2008م-2017م

مودة عبد الرحمن عبد الماجد محمد — 2023-02-20

The research was conducted in North Kordofan State to study the impact of bank financing on economic development during the period of (2008- 2017). The data was collected from the annual reports of the central bank of Sudan- Elobied branch. The data was analyzed using descriptive statistics and the constructive equations for detecting the way of economic development in the state during the study periods. The results of the study showed the bank financing increase with increasing rate during the study period, it was 5.2% in 2008 and increase to 67% in 2016. Also, the results of the study reviled that the bank financing of agricultural sector have a significant positive effect (B=0.465) on the state growth domestic product (GDP) at (p= 0.01). Moreover, the results of the study reviled that the bank financing of industrial sector have a significant positive effect (B=0.129) on the state (GDP) at (p= 0.01). Finally, the results of the study reviled that the bank financing of industrial sector have a significant negative effect (B=-0.874) on the state (GDP) at (p= 0.01). The study recommended that increasing the bank financing of the productive sectors in order to develop the state (GDP). Also, the study recommends that allocate some of the income

استخدام نماذجARIMA للتنبؤ بسلسلة الأرقام القياسية للأسعار في السودان للفترة من 1970-2012 م

د. أبو ذر يوسف علي احمد — 2023-02-20

Abstract

In this research, use the time series models to construct a model to predict the series of price Index Number (1970 to 2012).

The results showed that the model is the appropriate model for the series of price Index Number is:

ARIMA (1,1,2)

According to the estimation results of this model, we observe the compatibility between observed and estimated values as these values are consistent with those in the original time series, indicating the strength of the model and predictability.