The advantages of the existence of a computers network within any company with pretensions are obvious. But the construction and the existence of a network without meeting some minimum security requirements, although it would be preferable to be optimal, can lead to bad functioning in the...

Certain events as September 11, 2001, the flooding in Europe and Romania, Katrina hurricane from last year or the terrorists attacks from London and Madrid – are all compelling to understand the importance of risk exposures and the possibilities to identify them or at least to approximate...

Most of the international commercial transactions consist of merchandise and capital flows. The fluidization of these flows implies special financing techniques or the use of some payment instruments adequate to the purpose: minimum risk, time and cost. The payment sources or instruments can...