@inbook{NBERc7363,
 Crossref = "NBERwise06-1",
 title = "Market Concentration, Efficiency, and Quality in the Japanese Home Help Industry",
 author = "Yanfei Zhou and Wataru Suzuki",
 BookTitle = "Health Care Issues in the United States and Japan",
 Publisher = "University of Chicago Press",
 pages = "147-164",
 year = "2006",
 month = "September",
 URL = "http://www.nber.org/chapters/c7363",
}
@book{NBERwise06-1,
 title = "Health Care Issues in the United States and Japan",
 author = "David A. Wise and Naohiro Yashiro",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2006",
 URL = "http://www.nber.org/books/wise06-1",
}