Consumption taxes have substantially decreased economic growth in Eurozone in practice. The Neo-classical models of economic growth are inferior to classical models of economic growth, as the exclude Land and natural resources as an independent factor of production.

The primary impetus of the development of neo-classical theories economics excluded was United States government land grants to railroad companies during the westward expansion of the 19th century. The railroad barons took over the economics departments of private universities which were previously controlled by the clergy, began firing professors which held to classical economic theories, as there was no tenure for professors at the time. They instead began funding professors such as John Bates Clarke, who repckaged Marxist economist theory that capital was 'jelly' and land and natural resources no longer exist.

"Neo-Classical Economics as a Strategem against Henry George" documents how land and natural resources were removed from classical economic theories during the development of neo-classical economics in order to promote the interests of wealthy land owners in the United States during the 18th century:

http://www.masongaffney.org/publications/K1Neo-classical_Str...