### Comment:
No, economic growth makes it go up. You think all the gains we’ve had since 1900 have been because people were buying and selling?

### REPLY:
You're confusing the price of a stock for the value of the underlying asset. Prices only change when buying or selling occurs, as traders try to 'find' the price which reflects the underlying value. There are only traders, there is no external force readjusting the prices of stocks to reflect increasing value. If nobody ever sold then prices would remain the same but (assuming economic growth) fundamentals analysis would find the stocks to be becoming increasingly undervalued.

### END.