Democracy and growth: An alternative empirical approach

This paper proposes a “before-and-after” approach to empirical examination of the relationship between democracy and growth. Rather than the commonly used cross-country regression method, this paper compares the economic performances of forty countries before and after they became democracies or semi-democracies sometime within the last forty years. The empirical evidence indicates that an improvement in growth performance typically follows the transformation to democracy. Moreover, growth under democracy appears to be more stable than under authoritarian regimes. Interestingly, wealthy countries often experience declines in growth after a democratic transformation, while very poor nations typically experience accelerations in growth. Growth change appears to be negatively related to the initial savings ratio and positively related to the export ratio to GDP. Partial correlation between growth change and primary school or secondary school enrollments and the ratio of government expenditure to GDP is not identified.Democracy, economic growth

Democracy and growth: An alternative empirical approach

This paper proposes a “before-and-after” approach to empirical examination of the relationship between democracy and growth. Rather than the commonly used cross-country regression method, this paper compares the economic performances of forty countries before and after they became democracies or semi-democracies sometime within the last forty years. The empirical evidence indicates that an improvement in growth performance typically follows the transformation to democracy. Moreover, growth under democracy appears to be more stable than under authoritarian regimes. Interestingly, wealthy countries often experience declines in growth after a democratic transformation, while very poor nations typically experience accelerations in growth. Growth change appears to be negatively related to the initial savings ratio and positively related to the export ratio to GDP. Partial correlation between growth change and primary school or secondary school enrollments and the ratio of government expenditure to GDP is not identified.Democracy, economic growth, O40, O57

Democracy and growth: An alternative empirical approach

This paper proposes a “before-and-after” approach to empirical examination of the relationship between democracy and growth. Rather than the commonly used cross-country regression method, this paper compares the economic performances of forty countries before and after they became democracies or semi-democracies sometime within the last forty years. The empirical evidence indicates that an improvement in growth performance typically follows the transformation to democracy. Moreover, growth under democracy appears to be more stable than under authoritarian regimes. Interestingly, wealthy countries often experience declines in growth after a democratic transformation, while very poor nations typically experience accelerations in growth. Growth change appears to be negatively related to the initial savings ratio and positively related to the export ratio to GDP. Partial correlation between growth change and primary school or secondary school enrollments and the ratio of government expenditure to GDP is not identified.democracy; economic growth

Energy Loss in Nuclear Drell-Yan Process

By means of the nuclear parton distributions which can be used to provide a good explanation for the EMC effect in the whole x range, we investigate the energy loss effect in nuclear Drell-Yan process. When the cross section of lepton pair production is considered varying with the center-of-mass energy of the nucleon-nucleon collision, we find that the nuclear Drell-Yan(DY) ratio is suppressed due to the energy loss, which balances the overestimate of the DY ratio only in consideration of the effect of nuclear parton distributions.Comment: 10 pages, LaTeX, 1 ps figures, To appear in Eur. Phys. J.

Durability and service life of concrete repairs in the presence of cracks

Engineered Cementitious Composite (ECC) has been proposed to be one of the most promising repair materials due to its unique high ductility and tight crack width control. In concrete repairs, the shrinkage of repair materials is restrained by concrete substrate, and the repair material therefore often cracks. When ECC is used as repair material, the crack width is much smaller compared to normal concrete. The tight crack width of ECC retards the penetration of water and harmful substances and thus enhances the durability of concrete repairs. This paper is aimed to explore the chloride penetration in cracked ECC repairs and to assess the service life of the repair systems. Rapid chloride migration tests was conducted to investigate the chloride penetration profile. Based on the experimental results, the service life of repair systems was evaluated

Emerging Asia’s growth and integration: how autonomous are business cycles?

Against the background of the rapid integration of emerging Asia into the global economy, this paper investigates the role of domestic and external factors in driving individual emerging economies in Asia. We estimate VAR models for ten countries over the period 1979Q1- 2003Q4, controlling for external factors, and use sign restrictions to identify structural domestic shocks. Variance decompositions indicate that Asian emerging economies are to a large part driven by external developments, and even more so employing a more recent sample. We analyse to what extent structural domestic shocks exhibit a regional dimension by comparing shocks across countries using correlation and principal component analysis. The extent of regional co-movement between structural shocks is relatively limited. While the principal components analysis indicates a moderate increase in co-movement over time, the correlation analysis finds a decline. This may reflect a broadening of regional integration at the expense of bilateral economic ties. JEL Classification: F15, F02, F41Economic integration, International Business Cycles, sign restrictions, structural shocks

Local Entanglement and quantum phase transition in spin models

Due to the phase interference of electromagnetic wave, one can recover the total image of one object from a small piece of holograph, which records the interference pattern of two laser light reflected from it. Similarly, the quantum superposition principle allows us to derive the global phase diagram of quantum spin models by investigating a proper local measurement. In the present paper, we study the two-site entanglement in the antifferomagnetic spin models with both spin-1/2 and 1. We show that its behaviors reveal some important information on the global properties and the quantum phase transition of these systems.Comment: 6 pages, 7 figure