"Well, we have enough land in the country -- that’s not an issue," says Dr. Walden, a professor of agricultural and resource economics. "Now we maybe don’t have enough land in the right places. People are primarily settling on the two coasts. So what we are likely to see in those areas especially are higher densities and longer commutes.

"And I think one byproduct of this will be more impetus to teleworking, telecommuting," he adds.

"Food’s not an issue. We are going to have plenty of food. One of the hallmarks of our modern economy has been the enormous increase in farm productivity," Walden says.

"But in terms of other resources, water and power, I think, are two that perhaps raise some issues. Water is a limited issue -– a limited resource in some areas. Power -- we are not building new power plants to keep up with the demand for power, electricity.

"So I would look for increased cost here and also product innovations that are more energy and water efficient," he concludes.