In the early 1990s, the tariff was reduced, but when imports surged the Brazilians quickly raised it again.

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The nature of the cuts became clear this week with an announcement from the Greek Ministry of Environment, Energy and Climate Change (YPEKA) that feed-in tariff rates would be reduced by 40 percent for those projects installed after February 1, 2013 and before January 31st, 2014.

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The Smoot-Hawley Tariff, and the retaliatory tariffs by U.S. trading partners that followed afterwards, reduced American exports and imports by more than half.

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