Essential Features of capitalism: 1)Right of private property.2)Freedom of enterprise3)Competition4)Self interest5)Freedom of choice 6)Consumer`s sovereignty7)Importance of profit8)Price mechanism9)Role of government10)Economic fluctuations

Iso-quant curves can not intersect each other because it would mean that the same combination of labour and capital is used to increase the level of output from some units to some extra units I-e. From 100 units to 200 units, which is no logical.