51.   Some observers wonder whether New Vision can sustain its growth.

52.   Sustaining growth and helping the poorest Mexicans require structural changes, including a difficult tax reform.

53.   Sustaining that growth has been an influx of people.

54.   That sustains sales growth so the company looks cheap on a market price-to-sales basis, a common way of judging consumer products companies.

55.   The almost mystical faith that Americans seem to have that somehow or other the Fed can manipulate interest rates to sustain growth forever can probably stand the odd blow.

56.   The increase was anticipated and welcomed by bond traders on optimism that the central bank is taking a proactive stance in sustaining growth, while controlling inflation.

57.   The kind of tinkering Greenspan and the Fed are up to promises to sustain growth and to do so durably.

58.   The river, an important waterway for Colorado, New Mexico and Texas, as well as Mexico, is under increasing pressure to sustain growth in the region.

59.   The right amount is enough to sustain growth without igniting inflation.

60.   There was also concern about whether earnings growth could be sustained amid mounting evidence of a slowdown in economic activity.