Sales and Profits
Slowdown in retail sales growth.
Year-over-year change in retail sales (excluding food services).
Debt and corporate profits.
Corporate profits divided by nonfinancial corporate business debt (blue) and the year-over-year change in corporate debt (red).
Corporate profits divided by GDP (blue), market value of corporate businesses divided by GDP/10 (red), and corporate profits divided by corporate profits plus personal income (green).
The no longer existent gap between GPDI (gross private investment) and corporate profits as percent of GDP (though it seems to have grown).
GPDI (gross private domestic investment) divided by GDP (blue), corporate profits divided by GDP (red), the difference between GPDI and corporate profits as a percent GDP (green).
Market value and the S&P 500 related by private investment and the CPI respectively.
Market value of corporate businesses divided by private investment (blue) and the S&P 500 divided by the CPI (red).
The breakdown of private investment.
Nonresidential investment (blue) and residential investment (red).
I found the GPDI and corporate profit spread the most interesting; the spread at least is growing. The change in corporate profits to debt ratio from the mid-1960s to the late 1970s is also of interest. I would suppose inflation played some sort of role, both monetary and oil based.