The increasing importance of the carbon sequestration issue calls the researchers to investigate if the agri-environmental support (AES) to extensive mountain grazing granted under Regulations 2078/92, 1257/99 and 1698/2005 is still efficient. AES may have contributed to the maintenance of low...

Measured by M. Theil's U index, the distance among the columns of Wassily L eontief's technical coefficients show the main differences among the processes of production. Drawn from the input-output table, the B mat rix defines the shares of the each sector output, directly and indire ctly...