profit tree Full market competition will make economic activity full of vigor and vitality. On the basis of introducing marginal concepts and mathematical argumentation, neoclassical has established a formal "perfect" mathematical model for the neoclassical "laissez-faire order" : general equilibrium. The price is the most important independent variable in this model, which can also be called price mechanism. The process of achieving general equilibrium is also a process of social resources guiding the flow of prices, so the price mechanism regulates the allocation of social resources. Washington-based lender of last resort, says despite recent progress, Britain may still be in the absence of a deal out of the European Union, and commercial real estate prices and financial market risk of the credit crunch.