To start with the obvious, she might check trade mags Variety (which used
to have lots of data until about 20 years ago) and Billboard (they are
recordings), or the US Statistical Abstracts (which has some real
surprises).
Maybe try archives for Dept of Commerce.

If no luck finding compiled data, try  newspaper archives for ads.  These
will be local prices and not averages even locally.

On Thu, May 28, 2020 at 7:07 AM Stephen Groening <[log in to unmask]> wrote:

> I am working with an Economics PhD student who is writing a dissertation
> on exhibition windows.  She is looking for resources to find the historical
> price points of DVDs. Does anyone have any ideas on where she might find
> this or a good starting place?
>
>
> STEPHEN GROENING
> Associate Professor
> University of Washington
> Department of Cinema and Media Studies
>
> Padelford Hall Box 354338
> 4110 N. Stevens Way NE, Seattle, WA 98195
> Dept 206.543.7542 / fax 206.685.2017
> [log in to unmask] / cinema.washington.edu
>
>
>  <https://www.screenstudies.com/encyclopedia?docid=b-9781838710217>
>
>
>
>
>
>
>
>
>
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-- 
Richard Butsch

Current book projects:
*The Importance of the Social.*
*Homo Faber: Visual Representations of Manual Labor and Laborers in
Twentieth-Century America.*

Author:
*Screen Culture: A Global History *(Polity)
http://politybooks.com/bookdetail/?isbn=9780745653242
<http://politybooks.com/bookdetail/?isbn=9780745653242http://politybooks.com/bookdetail/?isbn=9780745653242>
;
*The Citizen Audience *(Routledge)
https://www.routledge.com/The-Citizen-Audience-Crowds-Publics-and-Individuals/Butsch/p/book/9780415977906*;
*and
*The Making of American Audiences *(Cambridge)
https://www.cambridge.org/gb/academic/subjects/arts-theatre-culture/media-mass-communication/making-american-audiences-stage-television-17501990?format=PB

Co-editor, with Sonia Livingstone
*Meanings of Audiences* (Routledge)
https://www.routledge.com/Meanings-of-Audiences-Comparative-Discourses/Butsch-Livingstone/p/book/9780415837309

Editor:
*Media and Public Spheres* (Palgrave),
https://www.palgrave.com/us/book/9780230007215
*For Fun and Profit: The Transformation of Leisure into Consumption*
(Temple)
http://tupress.temple.edu/book/3189

Professor Emeritus of Sociology, American Studies, and Film & Media Studies
Rider University, Lawrenceville NJ 08550, USA

----
Online resources for film/TV studies may be found at ScreenSite
http://www.ScreenSite.org