TOKYO -- Mizuki Nakamura, a 28-year-old who lives in Tokyo, is the kind of Japanese consumer putting pressure on the yen without even knowing it. The reason is her love for social media.

A lack of homegrown tech giants has contributed to Japan's "digital deficit": It imports far more digital services than it exports to the rest of the world. © Illustration by Yoshiko Kawano
'Digital deficit' drags down the country's trade balance