Complexation of a polyelectrolyte with an oppositely charged spherical macroion is studied for both salt-free and salty solutions. When a polyelectrolyte winds around the macroion, its turns repel each other and form an almost equidistant solenoid. It is shown that this repulsive correlations of...

We investigate how competitive behavior affects the capital structure of a firm. Theory predicts that the impact of different types of output market uncertainty (in particular, unanticipated shocks in demand and costs) on a firm’s leverage depends on the type of competition in an...

The Uruguay Round was the most ambitious round of GATT negotiations ever undertaken. This paper offers an evaluation of possible effects of the Final Act of the Uruguay Round with a special focus on Canada. Our two main findings can be summarized as follows: (1)First, the estimated impacts of...

The Uruguay Round was the most ambitious round of GATT negotiations ever undertaken. This paper offers an evaluation of possible effects of the Final Act of the Uruguay Round with a special focus on Canada. Our two main findings can be summarized as follows: (1)First, the estimated impacts of...

We analyze the importance of firm-specific and country-specific factors in the leverage choice of firms from 42 countries around the world. Our analysis yields two new results. First, we find that firm-specific determinants of leverage differ across countries, while prior studies implicitly...

Charge inversion of a DNA double helix by an oppositely charged flexible polyelectrolyte (PE) is widely used for gene delivery. It is considered here taking into account the discreteness of the charges of DNA. We concentrate on the worst scenario case when in the neutral state of the DNA-PE...