For each company data regarding the value of current and long term assets, current and long term liabilities, the book value of equity, the cash flow from operations, the value of advance expenses, the value of net sales, the number of shares and the auditor were collected, both for 2011 and 2012 For each year, data from the previous financial reporting period(2010 for 201 l) and(2011 for 2012) were also collected considering the accounting regime,