Japanese households have an estimated 90.53 trillion yen ($579 billion) worth of "hidden assets" or unused goods left untouched for more than a year, a recent survey by online flea market operator Mercari Inc. showed.Fashion items make up 33.6 percent of the total, followed by hobby and leisure goods, including toys and outdoor gear, at 22.2 percent, and books, music and game items at 21.2 percent, according to the survey of 2,400 people conducted in October.The sum was calculated based on average transaction prices on the Mercari app.In particular, people in the Chubu region, which include…READ FULL ARTICLE