Role of Intensive and Extensive Variables in a Soup of Firms in Economy   to Address Long Run Prices and Aggregate Data
  We review the production function and the hypothesis of equilibrium in the neoclassical framework. We notify that in a soup of sectors in economy, while capital and labor resemble extensive variables, wage and rate of return on capital act as intensive variables. As a result, Baumol and Bowen's statement of equal wages is inevitable from the thermodynamics point of view. We try to see how aggregation can be performed concerning the extensive variables in a soup of firms. We provide a toy model to perform aggregation for production and the labor income as extensive quantities in a neoclassical framework. 
Ali Hosseiny and Mauro Gallegati
q-fin.GN physics.soc-ph