Cheap handheld video cameras have revolutionized the hard-core pornography market.

Previously, making movies required expensive equipment and some technical expertise. Today, anyone with a couple hundred dollars and a moderately steady hand can buy and use a video camera to make a movie. Consequently, many new firms have entered the market, and the supply curve of porn movies has slithered substantially to the right. Whereas only 1,000 to 2,000 video porn titles were released annually in the United States from 1986 to 1991, that number grew to 10,300 in 1999 and to 13,588 by 2005.18 Use a side-byside diagram to illustrate how this technological innovation affected the long-run supply curve and the equilibrium in this market.