Japanese radar and the cost of service rivalry

Technical development differed by field, so Japan, Britain, and the United States each held advantages in particular areas. Early Japanese radar work is used as an example: one organization developed it as a navigational aid, abandoned it, and another service later pursued it separately. Refusal to share information could interrupt development despite the availability of scientific expertise. Japan also had mass-production capacity before and during the war, although its production priorities are criticized. The distinction concerns how institutions developed and applied technology, alongside their ability to invent it.