this research was investigated to analyze genotype × environment (ge) interaction for grain yield in durum wheat multi-environment trials (met) conducted in dryland agricultural research stations (dari) using gge (g + ge interaction) biplot methodology and joint regression analysis (b +  s2di). the environment, ge interaction and genotype effects were accounted for 84%, 7.7% and 2.3% of total s...

We examine how labor immigration affects public pensions under centralized wage setting. We show that immigration improves the sustainability of pay-as-you-go pensions if and only if total employment declines. This occurs if the labor demand elasticity exceeds the unemployment rate. JEL-Classification: F22, H55, J51

The paper evaluates the theoretical literature on public pension schemes. First, the terms pay-as-you-go and capital reserve are made precise. These two systems are then compared, followed by a consideration of their efficiency properties. Thereafter conversion policies are discussed. JEL-Classification: H21, H55

The old-age security motive for fertility postulates that people’s needs support raise the demand children. We exploit extension of social pensions in Namibia during 1990s to provide a quasi-experimental quantification this widespread idea. reform eliminated inequalities pension coverage and benefits across regions ethnic groups. Combining differences pre-reform exposure cohorts, we show substa...

The aim of this work was to isolate and characterize bacteriocins produced by 2 Lactobacillus fermentum strains isolated from artisanal Mexican Cocido cheese. Fractions (F ≤3 kDa) obtained cell-free supernatants Lb. J23 J32 were further fractionated reversed-phase HPLC on a C18 column. Antimicrobial activities F kDa bacteriocin-containing fractions (BCF), fractionation against 4 indicator micro...

Rent extraction by public sector workers may be limited by the ability of taxpayers to vote with their feet. But rent extraction may be higher in regions where high amenities mute the migration response. This paper develops a theoretical model that predicts such a link between public sector wage differentials and local amenities, and the predictions are tested by analyzing variation in these di...

Disclosure of private medical information allows insurance companies to better predict medical expenditures. The premiums the companies charge the insured employees reflect these expenditures. This paper studies incentives of employees to disclose their medical information. I find that healthier employees prefer to disclose medical information that results in a disclosure plan having a lower pr...

We study the effect of incorporating heterogeneity into default rules by examining the choice between retirement plans at a firm which transitioned from a defined benefit (DB) to a defined contribution (DC) plan. The default plan for existing employees varied discontinuously depending on their age. Employing regression discontinuity techniques, we find that the default increased the probability...

We investigated the genomic properties of a rotavirus A strain isolated from diarrheic pheasant poults in Hungary in 2015. Sequence analyses revealed a shared genomic constellation (G23-P[37]-I4-R4-C4-M4-A16-N10-T4-E4-H4) and close relationship (range of nucleotide sequence similarity: VP2, 88%; VP1 and NSP4, 98%) with another pheasant rotavirus strain isolated previously in Germany.

We compare capital requirements derived by tail conditional expectation (TCE) with those derived by tail conditional median (TCM) and find that there is no clear-cut relationship between these two measures in empirical data. Our results highlight the relevance of TCM as a robust alternative to TCE, especially for regulatory control. JEL Classification: G10, G11, G23, G29