The Barnsley based REHAU fabricator has seen a surge in enquiries from installers and consumers in response to its ongoing advertising, PR and web campaign and these are being passed to its stockists and distributors nationwide. Edwards and bell's point of view As hicks income concept did not specify what is called "equal wealth", and thus the income concept formed the basis of many debates concept, and the theory of accounting earnings, especially the capital preservation theory has a great influence. In accounting, people used to call "maintaining the same level of affluence" as capital preservation. Point six: look at the use of borrowing. The borrower's borrowing use must be clearly understood, applicable to the business turnover, the decoration shop and so on. So investors should pay close attention to the borrowers' borrowing and repayment methods. Point five: look at the repayment risk. Reimbursement risk fee, is that when investors corresponding borrower overdue list creditor's rights or bad debts, so risk fee reimbursement amount of account can be used to repay the principal and interest first, this will let next fall risk level, safety coefficient is relatively high, so it is more important, investors when the choice must be made sure.