{'marginal variable cost': [0, 0, 0, 1], 'marginal cost': [0, 0, 0, 1], 'total cost': [0, 1, 0, 2], 'short run': [0, 0, 0, 1], 'first derivative': [0, 0, 0, 1], 'cost': [2, 1, 2, 10]}