"Rising commodity prices and risk sentiment in general are contributing factors," the economists said.
"From any reasonable perspective, these stresses are contributing factors to these risky behaviors," said Andy Greenfield, who runs the firm.
Common school building design and materials, such as flat roofs, recessed ceilings, carpets and wall board, also are contributing factors.
The end of the government's tax incentives and ongoing foreclosures are contributing factors.
However, while I agree that economic malaise and the geopolitical situation are contributing factors, I believe that the root of the problem is actually today's skyrocketing ticket prices.
Poverty, ignorance and poor access to contraception are contributing factors, as are cultural issues like competition between wives.
Could it be that the inevitable jostling, nudging and groping are contributing factors in the homosexual tendencies of so many male British MPS and government ministers?
Although acid rain, global warming, and ozone depletion are contributing factors to these reductions, a full explanation of the disappearance in diverse environment remains uncertain.
Sex and body weight are contributing factors.
Sourcing, production and processing are contributing factors to excipient variability.
Smaller size and biocompatible materials, such as glutathione [33], are contributing factors in enhancing EPR effect.
