On the contrary, diligent application of the Laffer curve in the past has actually led to controversial outcomes. Since its proposal, there have been several real-life trials of modelling the Laffer curve and its consequent application, which have resulted in the finding that tax rates, which are actually utilised by the governing body, are to the left of the Laffer curve turning point, which would maximise tax revenue. More significantly, the result of several experiments, which tried to adjust the tax rate to the one proposed by the Laffer curve model, resulted in a significant decrease in national tax revenue - lowering the economy's tax rate led to an increase in the government budget deficit. The occurrence of this phenomenon is most famously attributed to the Reagan administration (1981–1989), during which the government deficit increased by approx. $2 trillion.
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