This paper overviews the entire landscape of Bitcoin-like cryptocurrencies. Bitcoin has not emerged out of cryptocurrency competition, but rather became a dominant currency as the first broad market based cryptocurrency. But there are more than a hundred of cryptocurrencies in the market, and...

This paper discusses the potential and limitations of Bitcoin as a digital currency. Bitcoin as a digital asset has been extensively discussed from the viewpoints of engineering and security design. But there are few economic analyses of Bitcoin as a currency. Bitcoin was designed as a payments...

The primary objective of this paper is to examine how and to what extent changes in income tax rates and income tax deductions affect income inequality from longitudinal perspectives, by using microdata from Japanese individuals and households. The findings of this paper could shed light on the...

We demonstrate a statistical procedure for selecting the most suitable empirical model to test an economic theory, using the example of the test for purchasing power parity based on the Big Mac Index. Our results show that supporting evidence for purchasing power parity, conditional on the...

Household consumption and saving behavior have been the central theme of recent macroeconomic literature. Following the work of Robert Hall (1978) and a series of papers by Fumio Hayashi, the focus of the literature has been on dynamic consumption behavior. Using the Family Income and...

This paper analyses the human growth (height and weight) pattern of babies born in January and July 2001, using the longitudinal survey of babies in 21st century conducted by the Ministry of Health, Labour and Welfare. The human growth is regressed on initial conditions (i.e. height and weight...