Buhrmaster said his energy plan would aid the sliding stock market.
"The economy is being held hostage by investors," said Buhrmaster. "They're not in the stock market anymore, they're in the commodities market."
Vasquez said he would fight to put an end to rising inflation.
Sullivan said he would promote alternative energy usage and end tax increases.
Brooks said major economic change would come from troop withdrawal.
"We need to end the war in Iraq," said Brooks. "We need to bring the $5,000 per second we're spending in Iraq and invest it here at home."
The seven candidates from the 21st District are vying for a seat that will be vacated by longtime Congressman Michael McNulty, D-Green Island, who will retire at the end of the year. The district is overwhelmingly Democratic and a Democrat has held the seat for several decades.
Candidates will square off in their respective party primaries on Tuesday, Sept. 9.