A way of judging the health of the economy is to calculate the inflation-adjusted sales of all of the companies in the S&P 500 and divide it by the total number of public shares. This index should have a natural upward bias. S&P 500 companies are very large, and acquire or merge with other companies, many of which are outside of the 500 companies. Buybacks of stock, which has been a trend of note these last five or so years, reduce the number of shares, or slow the growth in shares, reduce the denominator, again, giving it an upward bias. Instead, this measure has suffered. It peaked in 2007, and has yet to surpass that level. This means that corporate profits, which have generally been good (though slowing lately) have been managed by refinancing of debt to lower interest rates and reductions in costs and expenses. Those better profits are not the result of increased revenues. Slow, sluggish economic growth is reflected in these figures, and is a reminder that one should not look only to GDP as an indicator of the true health of the private sector.