We analyze technology adoption in industries where network externalities are significant. The pattern of adoption depends on whether technologies are sponsored. A sponsor is an entity that has property rights to the technology and hence is willing to make investments to promote it. Key findings include the following: (1) compatibility tends to be undersupplied by the market, but excessive standardization can occur; (2) in the absence of sponsors, the technology superior today has a strategic advantage and is likely to dominate the market; (3) when one of two rival technologies is sponsored, that technology has a strategic advantage and may be adopted even if it is inferior; (4) when two competing technologies both are sponsored, the technology that will be superior tomorrow has a strategic advantage.

We analyze technology adoption in industries where network externalities are significant. The pattern of adoption depends on whether technologies are sponsored. A sponsor is an entity that has property rights to the technology and hence is willing to make investments to promote it. Key findings include the following: (1) compatibility tends to be undersupplied by the market, but excessive standardization can occur; (2) in the absence of sponsors, the technology superior today has a strategic advantage and is likely to dominate the market; (3) when one of two rival technologies is sponsored, that technology has a strategic advantage and may be adopted even if it is inferior; (4) when two competing technologies both are sponsored, the technology that will be superior tomorrow has a strategic advantage.