The impact of governance on economic growth: The Case of Middle Eastwen and North African Countries

The main goal of this paper is to evaluate the impact of governance on economic growth using a group of 188 countries. Although our main focus is on the 21 Middle Eastern and North African (MENA) countries, our findings can be applied to the other countries as well. We create a “composite governance index” (CGI) that summarizes the existing six governance measurements in the Worldwide Governance Indicators (WGI), using the Principal Components Analysis (PCA) method. The first principal component derived from the WGIs explains as much as 81% of the variations in the original six WGI measurements. We then use PPP adjusted constant per capita GDP data to find that per capita GDP would rise by about 2% if the CGI increases by one unit. Using the Rule of 70, the marginal estimate further indicates a mere five-unit improvement in CGI would double the country’s per capita GDP in seven years. Nonetheless, the effect of improvement of governance cannot account for the higher than expected per capita GDP in most of the oil rich MENA countries. In other words, the majority of the MENA countries have achieved fragile levels of economic growth that does not depend on sound governance

The Impact of Governance on Economic Growth: The case of Middle Eastern and North African Countries

The main goal of this paper is to evaluate the impact of governance on economic growth using a group of 188 countries. Although our main focus is on the 21 Middle Eastern and North African (MENA) countries, our findings can be applied to the other countries as well. There are two main contributions in this paper. The first contribution is we are able to create a “composite governance index” (CGI) that summarizes the existing six governance measurements; the Worldwide Governance Indicators (WGI), using the Principal Components Analysis (PCA) method. The first principal component derived from the WGIs explains as large as 81% of the variations in the original six WGI measurements, which indicates that it can be used as a strong indicator for evaluating government’s managerial ability and effectiveness. Following the creation of CGI, the second contribution is we are able to quantify the marginal contribution of improvement in governance to economic performance using PPP adjusted constant per capita GDP data. We find that the per capita GDP would rise by about 2% if the CGI increases by one unit. Using the Rule of 70, the marginal estimate further indicates a mere five-unit improvement in CGI would double the country’s per capita GDP in seven years. Nonetheless, the effect of improvement of governance can not account for the higher than expected per capita GDP in most of the oil rich MENA countries. In other words, the majority of the MENA countries have achieved fragile levels of economic growth that does not depend on sound governance

The Impact of Governance Environment on Economic Growth: The Case of Middle Eastern and North African Countries

Abstract. The main goal of this paper is to evaluate the impact of governance on economic growth using a group of 188 countries. Although our main focus is on the 21 Middle Eastern and North African (MENA) countries, our findings can be applied to the other countries as well. There are two main contributions in this paper. The first contribution is we are able to create a “composite governance index” (CGI) that summarizes the existing six governance measurements; the Worldwide Governance Indicators (WGI), using the Principal Components Analysis (PCA) method. The first principal component derived from the WGIs explains as large as 81% of the variations in the original six WGI measurements, which indicates that it can be used as a strong indicator for evaluating government’s managerial ability and effectiveness. Following the creation of CGI, the second contribution is we are able to quantify the marginal contribution of improvement in governance to economic performance using PPP adjusted constant per capita GDP data. We find that the per capita GDP would rise by about 2% if the CGI increases by one unit. Using the Rule of 70, the marginal estimate further indicates a mere five-unit improvement in CGI would double the country’s per capita GDP in seven years. Nonetheless, the effect of improvement of governance can not account for the higher than expected per capita GDP in most of the oil rich MENA countries. In other words, the majority of the MENA countries have achieved fragile levels of economic growth that does not depend on sound governance..Keywords. MENA, Governance, Composite Governance Index, Economic Growth.JEL. O16, O43, N20

Observation of interlayer phonon modes in van der Waals heterostructures

We have investigated the vibrational properties of van der Waals heterostructures of monolayer transition metal dichalcogenides (TMDs), specifically MoS2/WSe2 and MoSe2/MoS2 heterobilayers as well as twisted MoS2 bilayers, by means of ultralow-frequency Raman spectroscopy. We discovered Raman features (at 30 ~ 40 cm-1) that arise from the layer-breathing mode (LBM) vibrations between the two incommensurate TMD monolayers in these structures. The LBM Raman intensity correlates strongly with the suppression of photoluminescence that arises from interlayer charge transfer. The LBM is generated only in bilayer areas with direct layer-layer contact and atomically clean interface. Its frequency also evolves systematically with the relative orientation between of the two layers. Our research demonstrates that LBM can serve as a sensitive probe to the interface environment and interlayer interactions in van der Waals materials

Too smart to be selfish? Measures of intelligence, social preferences, and consistency

Although there is an increasing interest in examining the relationship between cognitive ability and economic behavior, less is known about the relationship between cognitive ability and social preferences. We investigate the relationship between strongly incentivized measures of intelligence and measures of social preferences. We have data on a series of small-stakes dictator-type decisions, known as Social Value Orientation (SVO), in addition to choices in a larger-stakes dictator game. We also have access to the grade point averages (GPA) and Scholastic Aptitude Test (SAT) outcomes of our subjects. We find that subjects who perform better on the math portion of the SAT are more generous in both the dictator game and the SVO measure. By contrast we find that subjects with a higher GPA are more selfish in the dictator game and more generous according to the SVO. We also find that the consistency of the subjects is related to GPA but we do not find evidence that it is related to either portion of the SAT

Too smart to be selfish? Measures of intelligence, social preferences, and consistency

Although there is an increasing interest in examining the relationship between cognitive ability and economic behavior, less is known about the relationship between cognitive ability and social preferences. We investigate the relationship between strongly incentivized measures of intelligence and measures of social preferences. We have data on a series of small-stakes dictator-type decisions, known as Social Value Orientation (SVO), in addition to choices in a larger-stakes dictator game. We also have access to the grade point averages (GPA) and Scholastic Aptitude Test (SAT) outcomes of our subjects. We find that subjects who perform better on the math portion of the SAT are more generous in both the dictator game and the SVO measure. By contrast we find that subjects with a higher GPA are more selfish in the dictator game and more generous according to the SVO. We also find that the consistency of the subjects is related to GPA but we do not find evidence that it is related to either portion of the SAT

Too smart to be selfish? Measures of cognitive ability, social preferences, and consistency

Although there is an increasing interest in examining the relationship between cognitive ability and economic behavior, less is known about the relationship between cognitive ability and social preferences. We investigate the relationship between consequential measures of cognitive ability and measures of social preferences. We have data on a series of small-stakes dictator-type decisions, known as Social Value Orientation (SVO), in addition to choices in a larger-stakes dictator game. We also have access to the grade point averages (GPA) and SAT (formerly referred to as the Scholastic Aptitude Test) outcomes of our subjects. We find that subjects who perform better on the Math portion of the SAT are more generous in both the dictator game and the SVO measure. By contrast we find that subjects with a higher GPA are more selfish in the dictator game and more generous according to the SVO. We also find some evidence that the subjects with higher GPA and higher SAT outcomes offer more consistent responses. Our results involving GPA and social preferences complement previous work which employ measures of cognitive ability which are sensitive to the intrinsic motivation of the subject. Our results involving SAT scores are without precedent in the literature and suggest that measures of cognitive ability, which are less sensitive to the intrinsic motivation of the subject, are positively related to generosity

Enzymatic synthesis of structured lipids from liquid and fully hydrogenated high oleic sunflower oil

sem informaçãoStructured lipids (SL) were synthesized via enzymatic (EI) and chemical interesterification of high oleic sunflower oil (SO) and fully hydrogenated high oleic SO with Lipozyme TL IM (Thermomyces lanuginose) for 3 h at 70°C, 300 rpm. Reaction showed change211702716sem informaçãosem informaçãosem informaçã