In some poor neighborhoods, as much as 25 percent of the households lack phones, according to a city study in 1993.

A recent city study said film work added about $1.3 billion to the city's economy in 1992.

He said that the larger figure came from a new city study of the convention and its economic ramifications.

In a city study released by the Mayor, 4 of 10 blacks were refused service, compared with a quarter of the whites.

Now the group is looking to the conclusions of the city study, expected in June.

A city study published in July estimates that substance abuse accounted for 46 percent of the city's homeless.

A city study estimated cleanup costs at more than $50 million.

A city study said the availability of fast, inexpensive rail service would induce 28 percent more Californians to travel here.

In 1985, a city study proposed such a fund.

According to a city study, buildings account for nearly 80 percent of the city's greenhouse gas emissions, which have been linked to global warming.