The black-tie awards ceremony was held on 15 June at the Royal Armouries in Leeds, at the centre of the country’s great east-west glass manufacturing corridor – where nine out of ten of the UK’s largest glass manufacturers have production sites. The essence of economic value is human labor in the process of human economic products and relations. The value of the use value of creating products and the labor value of creating production relationship. The value concept in "das kapital" refers to exchange value, which is the essence of capital relations. Can't be replaced by local value The school provides excellent education to its students and grooms them into responsible citizens around the globe. The school carries a very well-maintained infrastructure. The school has well-lit and ventilated classrooms. The school features a big playground which includes provision for games like basketball, indoor games like gymnastic, chess, table tennis and carom etc. The school features a well-trained staff that's very committed to teaching. The teachers impart education inside most beneficial way. The teacher-student ratio with the school is well-balanced to ensure that just about every student gets health care and attention. The school has a library that includes a good number of books. What the central bank can do to prevent the threat to its independence becomes more transparent. They can announce the votes of individual board members on all matters related to the policy and publish the minutes without delay. They can hold more press conferences and be less trite in explaining their policies. They can avoid debate on issues far from their task. They can admit that politicians have a right to determine the central bank's mission objectives. In the early 20th century, famous American economist elvin fisher developed the theory of economic gain. In its book "the nature of capital and yield", first, the concept of yield is analyzed in terms of the performance of earnings, and three different types of benefits are proposed: