1859, Carrington (1860) and Hodgson (1860) independently observed a huge white-light solar flare. Less than a day later telegraph communications were severely disrupted during a planetary-scale magnetic storm. At the same time a great aurora was seen, even...
Zhao J (2018) emphasized that growth is unstable, and that the economy’s downward pressure would cause structural adjustment to occur more slowly, making achieving high-quality economic growth difficult [32]. With reference to the definitions of Hausmann et al. (2005) [33] and Eichengreen et...