In the present paper I examine tax revenue projections in Germany over the period 1968 to 2012 with a focus on forecasting rationality. I show that tax revenue forecasts for the medium-term are upward biased. Overoptimistic revenue projections are particularly pronounced after the German...

The Alberta government is heavily exposed to energy price volatility as it relies to a great extent on revenue derived from the production of oil and natural gas. Energy prices change substantially and unpredictably, causing large and uncertain movements in revenues. Adjusting to these movements...