schaeffer oil 15w40 At present, about the nature of the enterprise. Western economists have different views. There is also some debate. Some western economists analyze the nature of the enterprise mainly from the perspective of transaction costs that coase emphasizes. For many, the first benefit of entering the blockchain and cryptocurrency world could be economic gain. The general value form, while the general value form is not equal to the local value form. The practice of value must be determined in a certain category.