Economists use this measurement when they are trying to quantify the amount of money in circulation.

FORBES: INTERVIEW: Inflation Should Not Be A Problem For U.S., Canada, Gold Prices To Rise -- Dundee's Murenbeeld

Economists use this category when looking to quantify the amount of money in circulation and trying to explain different economic monetary conditions.

FORBES: INTERVIEW: Inflation Should Not Be A Problem For U.S., Canada, Gold Prices To Rise -- Dundee's Murenbeeld

One says that, over the long run, the price of gold approximates the total amount of money in circulation divided by the size of the gold stock.

NEWYORKER: Mastering the Machine

The Bank of England is continuing to buy up billions of government bonds as part of its policy of helping the commercial lenders through increasing the amount of money in circulation, a policy known as quantitative easing.

BBC: Will the City come to Darling's rescue?

Many of the worst problems will hit retailers, who in some countries will be in the thick of the January sales, the period when shops are busiest and the amount of money in circulation is largest (see article).

ECONOMIST: Unready for blast-off | The

The Fed can double the price of everything in the economy by simply doubling the amount of printed money in circulation.

FORBES: Dollar Not Doomed But You're Gonna Need More Of Them

Our earlier use of this policy approach had little effect on the amount of currency in circulation or on other broad measures of the money supply, such as bank deposits.

FORBES: An Inflationary Death Spiral

Inflation ate away at the value of money in circulation, while wear and tear reduced the amount.

ECONOMIST: Dwindling dinars