Aperfectly competitive market in equilibrium is allocatively efficient and it maximizes

a).total consumer surplus.
b).total producer surplus.
c).the sum of total consumer surplus and total producer surplus
d).total revenue
e).total external benefits.

A. describe the model of urban structure most often observed in mega-cities in developing countries. explain how this model differs from common urban structures in north america. b. describe at least two factors leading to the growth of mega-cities in developing or least-developed countries. c. identify and explain two factors that led to the formation of squatter settlements in mega-cities in developing countries.