Would this double major be marketable?

[Dna]

I have a choice of either graduating in 3 years or double majoring. I definitely want to major in Economics, and I was thinking of adding on a Business degree with a concentration in Public Policy and Public Service. My general career goal is to work in economic and social development, and I do want to eventually go to grad school. Is this double major a good choice?
They are within the same school so it would only be a semester or two more. I will already have 30 credits from high school anyways.
They are within the same school so it would only be a semester or two more. I will already have 30 credits from high school anyways.
It is a B.S. in Econ and a B.A. in business with the concentration. Top 30 Business school.