In practice, both sets of factors probably play a role while their relative importance varies between markets.

The importance of vintage, however, is both varied and disputed.

Most families have secrets, but the kind and importance vary.

The economic importance of ultrapotassic rocks is wide and varied.

The relative importance of the tax credit varies from family to family.

The importance of these services varies widely among different economies.

Its importance as an avenue for adoption varies by country.

The relative importance given to each of these three strategies has varied over time and between different contexts.

The role and importance of this official varied over time.

The importance to be attached to these factors will vary from case to case.