The company has proven to be rugged and focused on quality.

"The company is proving that it can run a business even in the most difficult environment."

The rules are similar in Texas, except that the private company must prove its cost is at least 10 percent lower than the state's.

But the agency refused, saying the company had not proved the drug's effectiveness.

"I want to see the company prove itself" at the operating level, he said.

But in general, the private companies have proven to be more efficient.

The chances are 7 in 10 that the company will prove financially sound.

"Small companies will prove again to be the best place to invest."

The company has proven that it can do many things right.

He said the company had proved as much with the recent efforts to improve its performance in Philadelphia.