In addition to the expense of buying the commercial time, Thomas Harpointner says there are additional costs that many forget.

VOA: standard.2010.01.27

Just as last time, we're going to assume that costs are constant marginal costs.

就像上次一样,我们将假设成本是固定的边际成本

耶鲁公开课 - 博弈论课程节选

"It's estimated that the average commuter in our region, congestion costs that person in excess of $1000 per year in lost time."

VOA: standard.2010.07.26

"At the same time cuts costs, the waste,the fraud,the duplication, endemic to our system and at the same time it covers 31 million people.

VOA: standard.2009.12.25

As for cost,Dr.Miller says patients with a heart pump spend less time in a hospital and have lower hospital costs than patients with severe heart disease.

VOA: standard.2010.01.27

Even though the recession has forced a drop in the amount it costs to buy commercials in the big game for just the second time in history, they are still the most expensive on television.

VOA: standard.2010.01.27

In 2007,expenditures on health care totaled about one-sixth of the entire U.S.economy, and even top congressional leaders acknowledge that attempting to rein in health-care costs while at the same time expanding health-insurance coverage is a daunting task.

VOA: standard.2009.07.31