Studies have suggested that there exists job search and recruiting friction in urban areas. This paper constructs a two-sector (rural and urban) model involving this factor and investigates how it affects migration and what the optimal policies should be. An analysis shows that frictional urban unemployment brings about inter-sector wage differentials and that an economy almost always has disto...

The Role of the Regional Milieu for the Decision to Start a New Firm: Empirical Evidence for Germany Although comprehensive data from official statistics on new firm formation and entrepreneurs starting a new business are lacking in Germany, we know from empirical studies that entry rates differ between regions, and that the propensity to become an entrepreneur is influenced by socio-demographi...

in this paper a general view of the gini decomposition is presented. in order to decompose the gini coefficient into within group inequality, between group inequality and transvariation inequality of the iranian urban and rural areas, the 2006 and 2010  micro-data and dagum (1997) method is used. the results indicate that about 48 percent of the inequality in the country as a whole has been due...

Drosophila Enabled is required for proper formation of axonal structures and is genetically implicated in signaling pathways mediated by Drosophila AbI. We have identified two murine proteins, Mena and Evl, that are highly related to Enabled as well as VASP (Vasodilator-Stimulated Phosphoprotein). A conserved domain targets Mena to localized proteins containing a specific proline-rich motif. Th...

The performance of the [2]S and [2]R12 universal perturbative corrections that account for oneand many-body basis set errors of singleand multiconfiguration electronic structure methods is assessed. A new formulation of the [2]R12 methods is used in which only strongly occupied orbitals are correlated, making the approach more amenable for larger computations. Three model problems are considere...

We calculate exactly the functional determinant for fermions in fundamental representation of SU(2) in the background of periodic instanton with non-trivial value of the Polyakov line at spatial infinity. The determinant depends on the value of the holonomy v, the temperature, and the parameter r12, which at large values can be treated as separation between the Bogomolny–Prasad– Sommerfeld mono...

Limited studies have compared BIM’s impacts on project performance via business types, working experience, and locations. A survey was conducted results found that (1) BIM helped with the early detection of design errors (R1), pre-construction RFIs (R2), number repeat customers (R12), but negatively affected other 9 indicators (R3~R11); (2) for R1/R2/R12, contractors, international projects, st...

There has been an unprecedented trade liberalization which started in the mid1980s in a wide spectrum of developing countries. In the same period, there have also been considerable changes in the tax structures of countries. This paper uses panel data on 65 countries, including 16 Middle East and North Africa (MENA) countries, for the period 1980–1997 to examine how tax structures responded to ...

To overcome the limited immunogenicity of the meningococcal group A (MenA) polysaccharide (Ps) vaccine, the protein conjugation technology was applied to the development of MenAfriVac® (Serum Institute of India Ltd.). The MenA Ps is covalently conjugated to a protein, which acts as an immunologic carrier. MenAfriVac is a purified MenA polysaccharide tetanus toxoid (TT) conjugated vaccine (10 μg...

Oneand two-body densities in position space have been calculated for the atomic beryllium isoelectronic series starting from explicitly correlated multideterminant wave functions. The effects of electronic correlations have been systematically studied by comparing the correlated results with the corresponding Hartree–Fock ones. Some expectation values such as ^d(r)&, ^r& , ^d(r12)& , ^r12 n &, ...