Another strong factor is that wine does not travel well.

More recently, tourism has become a strong economic factor in the area.

Finally, age is a strong factor in determining music preference.

A child's level of activity is a strong factor in how successful treatment is.

Other strong factors include participation in a contact sport and body mass size.

Using an incorrect fuel is usually a strong contributing factor.

That the creature could just as easily have been male or female was also a strong factor in the decision to use it.

We're a strong factor in the strength of the economy," he says, clearly put out.

This has been the case recently because of two strong factors supporting higher prices.

The idea that the Half.com name might generate jobs is clearly a strong factor at work, if a somewhat vague one.