Corsi et al. (2006), in a study commissioned by the European Commission for the e-government unit, note that ‘Given the large share of PS in European countries’ GDP, efficiency in PAs is an objective per se and a major driver of international competitiveness and economic welfare.’ (PS=public sector, PAs=public administrations). According to them, e-government enhances GDP growth through four channels: (i) growth of PS productivity, (ii) growth of PS total output, (iii) efficiency of public administration (contributes directly to the efficiency of the economy as a whole and to the productivity of the private sector in particular), and (iv) as part of aggregate demand (ibid.). They estimate the overall GDP growth attributable to e-government in the period 2005-2010 at 2%
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