The network executives said the company had studied the matter of drug testing for a year before deciding on the new policy.
She said the company was studying ways to open a new store on the Little Neck site.
The company has been studying such a move for some time.
The two companies studied the possibility of a merger in 1985, but took no action.
The company did not study the impact on productivity.
The company, which was founded in 1996, has studied how people use its site.
In addition, the company is studying whether it can use more permanent workers and provide English courses.
The company is also studying the use of Chinese labor for construction projects abroad.
The company is still studying the possibility of expanding this service to other cities.
The company is still studying the decision and might appeal, she said.