How do I estimate the (change) of a variable, as a new X
Posted: Mon May 12, 2014 3:48 pm
Say I wanted to investigate the effect of sugar price changes on several stock prices.
1) How do I add the (change) in the sugar price as an exxplanatory variable?
2) Is this the same thing as a first difference?
3) What if I add the sugar price variable, with all it's values in period 2000 - 2010, how is this different from 1) ?
1) How do I add the (change) in the sugar price as an exxplanatory variable?
2) Is this the same thing as a first difference?
3) What if I add the sugar price variable, with all it's values in period 2000 - 2010, how is this different from 1) ?