  In this editorial guide for the special issue on econophysics, we give a
unique review of this young but quickly growing discipline. A suggestive
taxonomy of the development is proposed by making a distinction between
classical econophysics and modern econophysics. For each of these two stages of
development, we identify the key economic issues whose formulations and/or
treatments have been affected by physics or physicists, which includes value,
business fluctuations, economic growth, economic and financial time series, the
distribution of economic entities, interactions of economic agents, and
economic and social networks. The recent advancements in these issues of modern
econophysics are demonstrated by nine articles selected from the papers
presented at the Econophysics Colloquium 2010 held at Academia Sinica in
Taipei.
