Adstock revisited

Figures & data

Table 1. Searching for the optimal value of $\mathit{\lambda }$ using (1) with (2).

Estimates (standard error in parentheses)
$\mathit{\lambda }$	$\mathit{\beta }$	SE of $\mathit{\beta }$	$R^2$
0.1	0.197	(0.048)	0.228
0.2	0.201	(0.045)	0.262
0.3	0.203	(0.041)	0.295
0.4	0.203	(0.039)	0.324
0.5	0.200	(0.037)	0.346
0.6	0.196	(0.035)	0.358
0.7	0.187	(0.034)	0.349
0.8	0.147	(0.033)	0.253
0.9	0.012	(0.022)	0.006

Figure 1. Monthly Lydia Pinkham sales and advertising data, 1954.01–1958.12.

Figure 2. Monthly Lydia Pinkham sales against advertising data, 1954.01–1958.12.