With the passage of time the market conditions have changed. Like the accounting measures such as the current assets, the fixed assets or the total debt of a firm now in 2016 is very different than those in 1980's or 1990's. If we talk about general market conditions or the market as a whole what sort of conclusion can we infer?
Do the total asset of firms increased/decreased?
Do the total liabilities of firm increased/decreased?
does the market capitalization of the overall market increase/decreased?