In astronomy, 1 parsec is equal to approximately 30 trillion kilometres, or about 3.26 light years. http://en.wikipedia.org/wiki/Parsec I think we should adopt a similar "distance" measure for the net amount of money infused into the economy over a year by the FED. However, to keep the number normalized, a paryear will take inflation over the risk free rate into account. We will use 1 as the value of inflation in 2008. Then each year we multiply the inflation number by 1 paryear. So if the inflation rate goes up 2% in 2009, the new mutiplier will be 1.02. This allows us to compare money from different times. I suggest 1 paryear be equal to $3 Trillion dollars. Since the current inflation multiplier is 1.0, $3 Trillion means $3 Trillion which equals 1 paryear. Then we can talk about really big numbers easily. It also allows us to talk about GDP in paryears. I estimate that the FED will have to infuse an extra 2 paryears in 2009 to deal with new problems that arise.