The obvious answer is to go for the heart of the country's economy, and where better to focus than the gold mines?

Still, the heart of Kuwait's economy remains the highly automated oil industry.

The heart of Taichung's economy has long been the small business.

Small businesses, including smaller retailers, are the heart of our economy.

"This tax is aimed right at the heart of our economy," he said.

In fact, since oil started flowing here more than a century ago, energy has been at the very heart of the state's economy.

The country's economy had to change the heart of its economy.

And Cobol, whether you like it or not, is at the heart of our economy.

But despite the loss of companies and jobs, manufacturing remains the heart of the state's economy.

Energy is at the heart of our economy.