Consumer Price Index

Other Video Equipment
DVD Players (2005)

Variable Name

 Parameter Estimate Standard Error T Statistic

Intercept 4.15693 0.05422 76.66
Brands:

Inferior Brand -0.37637 0.08898 -4.23

Superior Brand 0.21677 0.07539 2.88
Features:

5 Disc Changer 0.26923 0.08472 3.18

Recorder 0.99741 0.07945 12.55

Upconversion 0.53642 0.10484 5.12

Digital Optical Output 0.11136 0.05915 1.88

WMA files 0.09924 0.05774 1.72

High Def Audio 0.21975 0.08051 2.73

Divx 0.17756 0.11582 1.53

VCR Combo 0.54139 0.05618 9.64

7" Screen 1.13395 0.12687 8.94

9" Screen 1.6239 0.1688 9.62
Control Variables:

Warehouse -0.38509 0.07028 -5.48

Full Service Dep't Store -0.19067 0.07658 -2.49

Discount Dep't Store -0.24361 0.05652 -4.31
R2 = 0.7995; Adjusted R2 = 0.7800; F Statistic = 40.88; Number of Observations = 136
Camcorders (2010)

Variable

 Coefficient Chi2 Statistic

Intercept 3.987026 N/A
Storage:

Hard Disk 0.0820014 7.334**

Internal Solid-State -0.0779209 27.113**

MiniDV 0.4129267 224.632**

Other Tape 0.3030759 6.732**

DVD 0.1609633 29.542**
Storage Size:

Hard Disk (GB) 0.0012437 18.954**

Solid-State (GB) 0.0131182 500.499**
Sensor:

CCD 0.0999572 19.083**

Three Sensor 0.6568976 494.722**
Zoom:

Optical 0.0042259 44.076**

Electronic -8.46e-05 36.919**
Resolution:

1080 0.3809395 301.039**

720 0.1174442 47.626**
Stability:

Optical 0.220705 90.775**

Electronic 0.1703267 72.252**
Weight:

Over 1 LB 0.2073224 96.862**

Under 3 oz -0.0968554 8.051**
Brand:

Top 0.3302393 321.431**

Low -0.3033826 167.754**
Battery:

Standard Size -0.21699 86.310**

Box-Cox Parameters

 Coef. Std. Err. z P>|z| [95% Conf. Interval]

Theta

 -0.0687973 0.0131046 -5.25** 0 -0.0944819 -0.0431128
Pseudo-R2 = 0.74; Number of Observations = 2857; ** Sig at 1%