November 2006 most likely marks the launch of Sony’s PS3, the successor to PS2. Later, Nintendo is expected to launch the Wii, the successor to the GameCube. We answer the question in the title by analyzing the diffusion of the earlier generations of these consoles, and by using a new model...

Charitable organizations send out large volumes of direct mailings, soliciting for money in support of many good causes. Without any request, donations are rarely made, and it is well known that each request for money by a charity likely generates at least some revenues. Whether a single request...