Funding for this research was provided by:
Japan Society for the Promotion of Science (26282089)
Japan Science and Technology Agency (PRESTO Grant Number JPMJPR1504)
Article History
Accepted: 4 January 2018
First Online: 5 February 2018
Compliance with Ethical Standards
:
: The authors declare no conflict of interest associated with this manuscript. Views expressed are those of the authors and do not necessarily reflect those of the bank (Bundesbank, Bank of Japan).