Historically, the concept of income has first appeared in economics. Adam Smith, in the wealth of nations, defined income as "the amount of consumption that is not eroded by capital", and saw it as an increase in wealth. Later, most economists inherited and developed this view. 1890, ai (Alfred Marshall Maarshell) in its "the principles of economics," the Adam Smith's "wealth increase" enterprise, introduced the concept of earnings, is proposed to distinguish the entity capital and value-added benefits of economic benefits. “It’s time to end this undercutters’ charter and for the government to scrap this loophole. It’s recent review into modern employment practices called for precisely that.” Activity diagrams must be used in alignment along with other modeling techniques like interaction diagrams and State diagrams. The main reason behind with your diagrams would be to model the task flow behind it being designed. these Diagrams are also helpful for analyzing a use case by describing what actions have to take place then when they ought to occur, describing an elaborate sequential algorithm and modeling applications with parallel processes. Competition refers to the economic subject in order to maintain and expand their own interests and take all sorts of behavior, the behavior of self-protection and expansion efforts in product quality, price and service advantages, varieties, etc. India's income tax authorities are sending a tax notice to half a million bitcoin users who are trading in encrypted currencies.