03/02/2018

See below for model results. It appears that on this date demand is best explained by its past, while said past can explain changes in prices . . .

                                                                                                             

Why is it sloping up?

Note that "t-1" and "t-2" are 1- and 2-period lags.

Change in Demand as Dependent
	Coefficient	Std Error	p value
Constant	-4.6179	51.3363	0.92875
(Change in Demand)t-1	1.3513	0.1535	0.00000
(Change in Demand)t-2	-0.46410	0.1432	0.00233
(Change in Price)	2.3344	11.2284	0.83631
(Change in Price)t-1	-3.3065	10.8532	0.76213
(Change in Price)t-2	-13.2191	10.9737	0.23509
Adjusted R-squared:  0.8504
Change in Price as Dependent
	Coefficient	Std Error	p value
Constant	-0.0777758	0.705081	0.9127
(Change in Price)t-1	0.2393685	0.1445922	0.1053
(Change in Price)t-2	-0.2092051	0.1498701	-1.396
(Change in Demand)	0.0004404	0.0021183	0.8363
(Change in Demand)t-1	0.0060646	0.0034312	0.0844
(Change in Demand)t-2	-0.0048675	0.0020667	0.0233
Adjusted R-squared:  0.2953