COBB COUNTY, Ga. — Mass vaccination sites in Cobb and Douglas counties are closed today, according to the public health department for that district, because of shortages in the vaccine supply.

We introduce a new type of production function, called approximate Cobb-Douglas function, by a perturbation of Euler's partial differential equation characterizing homogeneous function. We show that ...

In micro-economic theory much room is given to the discussion of inhomogeneous production functions, or more precisely, production functions with a monotonically decreasing elasticity of scale. On the ...