1.   For minute-to-minute data, they computed the natural logarithm of the variance of price changes for each day.

2.   Price volatility for each week was measured as the square root of the average of daily squared price changes.

3.   Store ads inform customers of price changes, of changes in food supply, and about specials.

4.   The analysis of price changes has the advantage of avoiding the need to define the sum invested.

5.   The patterns of individual metal price changes will then be followed with the object of assessing future price trends.

6.   This price change will produce a matching change in the weights of an arbitrage portfolio.

7.   What determines whether firms, households, or symphony orchestras respond to price changes?

8.   Risk of unanticipated price changes.

9.   Hence, the use of options to hedge any long position in shares involves a continuous reassessment as time and the share price change.