1. Corporate 'big box' stores have replaced small family run stores in many industries (incl. agriculture).What industries do these corporate 'giants' do not exist. Why?For instance, why are there (for the most part) no 'big box' funeral homes? Do economies of scale not exist in some industries?

2. Related to #1 above, why are most dry cleaners small stores, and why are all power plants large? What do marginal and fixed costs have to do with company size.

3. Are universities subject to economies of scale?For example, google this article "Closures to Triple" published September 28, 2015from InsideHigherEd.com. How do economies of scale affect the ability of universities/colleges to remain open.Can alumni donations save universities/colleges?

4. What is the rate of output is appropriate for a non-profit corporation (eg, Red Cross, Goodwill). Do/should these firms organize themselves as a for-profit corporation?