complicity how the north profited from slavery Historical costs differ from current values Realizing the core commitment of blockchain to people's rights - we have experienced systemic failure in social globalization. The failure causes people falling into poverty, lack of education and basic services, have no voice, lack of liquidity and freedom, while the rights of the company was expanding and protection, on the suffering of the poor to achieve development. 6. The accounting benefit is bound by the prudent principle. According to the principle of prudence, when there are a variety of accounting methods to choose from an economic business of an enterprise, it should choose a method that neither overestimates nor depreciates the benefits. Enterprises manipulate profits to achieve homogenization of profits, most of which adopt the method of overestimating earnings, and the subjective selection of the period of value-added. Last year, labour market economist John Philpott found that more than one in five workers, around 7.1 million people, were in precarious employment, up from 5.3 million in 2006.