TORONTO -- Finance Minister Jim Flaherty says stimulating the economy ultimately falls on the heads of the private sector.

Flaherty says the government has already introduced measures in the budget to compel Canadian corporations to invest some $525 billion of dead cash back into the economy.

He cites the accelerated capital cost allowance and the mining exploration credit as examples of his government's strategies.

Flaherty adds that the government has also used the tax system to encourage businesses to use their capital.

But he says, at a certain point it's no longer up to the government to stimulate growth but the private sector itself.

Flaherty says the general attitude at the annual summer retreat he attended with business heads was that Canadian businesses need to move away from this time of uncertainty.

"The Canadian economy is doing relatively well and for Canadian businesses this is an opportunity to invest, especially in infrastructure and long-term projects in Canada," he said.

Flaherty made the comment to reporters outside the Rogers Centre, after the Royal Canadian Mint unveiled a commemorative coin marking the 100th anniversary of the Grey Cup.

Five million of the coins, which feature an image of the Grey Cup, will be in circulation at Canada Post locations across the country starting Tuesday.

The coin will be used during the coin toss at this year's historic Grey Cup match, which will be played at the Rogers Centre on Nov. 25.

CFL commissioner Mark Cohon and Royal Canadian Mint Board of Director chair James B. Love were also on hand for the unveiling.

Earlier this month, Canada Post unveiled a series of commemorative 100th Grey Cup stamps that includes one featuring a memorable occasion for each CFL team, as well as another depicting the Cup itself.

Mike (Pinball) Clemons, longtime Toronto Argonauts player, coach and executive, is featured on one of the stamps.