Concept
The window effect describes how a cultural product keeps creating value as it moves from its first outlet (window) to others instead of ending there. For a film, the typical sequence is a theatrical release, then IPTV/VOD a few months later, then pay movie channels and streaming services, and finally free broadcast TV. Arranging outlets in time like this is called windowing.
Why it matters in cultural industries
- High first-copy cost, low reproduction cost: production costs are largely fixed and paid once, while supplying another window costs very little, so average cost falls as windows are added, a form of economies of scale.
- Non-rivalry: one person's viewing does not reduce another's, so the same content can be sold in many markets.
- Cultural discount: content loses some value abroad because of language and cultural differences, but since added costs are small, exports remain profitable.
Holdbacks and price discrimination
The waiting period between windows is the holdback. Owen and Wildman (1992) explained windowing as intertemporal price discrimination: eager consumers pay high ticket prices to see a film early, while patient ones wait for cheaper VOD or free TV. Splitting consumers by willingness to pay lets the distributor maximize revenue in each window. Waterman (2005) showed how Hollywood, after the threat of television in the 1950s, multiplied its revenues through pay TV and home video. Holdbacks that are too short cannibalize earlier windows; holdbacks that are too long lose value to piracy and fading interest.
OSMU and Hallyu
Whereas the window effect moves the same content across media, OSMU (one source, multi-use) extends a source property into other genres and goods, such as turning a webtoon into a drama, film, game and merchandise. The two are often used together. Hallyu, in which Korean dramas aired at home are sold to foreign broadcasters and streaming services and lift demand for tourism, cosmetics and food, is a leading example of window effects and cross-industry spillovers.
Changes in the streaming era
Global streaming services such as Netflix have sharply shortened theatrical holdbacks, and simultaneous theatrical and streaming releases have grown, especially during COVID-19, causing friction with cinema chains. Streamers increasingly fund production and buy worldwide rights up front, which some say reduces the revenue producers used to collect window by window. On the other hand, platforms release content in many countries at once, so overseas windows are reached far faster.
References
- Owen, B. M., & Wildman, S. S. (1992). Video Economics. Cambridge, MA: Harvard University Press.
- Waterman, D. (2005). Hollywood's Road to Riches. Cambridge, MA: Harvard University Press.