1. Why break down contributions made by associate companies into operating, financial and non-recurring items?

2.If income is recorded on a companys books on the day it is received (and not on the invoice date) and costs on the date of payment, would this generate working capital? If so, how would this working capital differ from the working capital as calculated today?

3. Why is the increase in inventories of raw materials deducted from purchases in the by nature income statement format?

4. What is the discount factor equal to?