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...

For most of the postwar period, Europe’s capital markets remained largely closed to international capital flows. This paper explores the costs of this policy. Using the familiar event-study methodology, we examine the extent to which restrictions of current and capital account convertibility affected stock returns. We find that the delayed introduction of full currency convertibility increased ...

The present study aimed to evaluate productive characteristics and the physical, chemical sensory quality of juices elaborated from different genotypes ‘Bordô’ cv. produced in Vale do Rio Peixe-SC region, 2016/17. 11 clones evaluated were identified as: G03, G07, G08, G10, G12, G13, G15, G16, G17, G18 G19. At harvest, fruit production evaluated. mean productivity tested was 31.2 t ha-1, with a ...

Redistributive Taxation and Personal Bankruptcy in US States Both personal bankruptcy and redistributive taxes can insure households’ consumption risk and both vary considerably across US states. We derive sufficient conditions under which more redistributive taxation makes bankruptcy exemptions less attractive both for the intratemporal insurance and for inter-temporal consumption smoothing. E...

Separation between CEO and Chairman of the Board is typically viewed as evidence of good corporate governance. Surprisingly, the literature has failed so far to uncover any significant relation between CEO/Chairman duality and firm performance. By distinguishing between periods with and without CEO turnover, we empirically identify two offsetting effects: the correlation between duality and per...

In standardWalrasian macro-finance models, pecuniary externalities such as fire sales lead to overinvestment in illiquid assets or underprovision of liquidity. We investigate whether imperfect competition (Cournot) improves welfare through internalizing the externality and find that this is far from guaranteed. In a standard model of liquidity shocks, when liquidity is sufficiently scarce, Cour...

Although dealership government and equity securities have, on the surface, similar market structures, the author demonstrates that some subtle differences exist between them that are likely to significantly affect the way market-makers trade, and as such have an impact on the liquidity that they provide. The author reviews some of the concepts recently introduced in the literature, examining mu...

The Basel 2 Accord requires regulatory capital to cover stress tests, yet no coherent and objective framework for stress testing portfolios exists. We propose a new methodology for stress testing in the context of market risk models that can incorporate both volatility clustering and heavy tails. Empirical results compare the performance of eight risk models with four possible conditional and u...

In a multi-industry growth model, firms require external funds to conduct productivityenhancing R&D, and are limited by financing constraints. The cost of research differs across industries, so financing constraints hinder productivity growth in some industries more than in others. Equilibrium industry dynamics map into a differences-indifferences regression specification where industry growth ...