Während in Europa hitzig über die Konsequenzen einer möglichen Wiederwahl Donald Trumps debattiert wird, offenbaren die Diskussionen in Australien, Japan und Südkorea größeres Vertrauen in Washingtons Sicherheitsversprechen. Dort ist die Angst, dass die USA ihre erweiterte nukleare...

The subject of this paper tackles questions of macroeconomic integration of the South-East Asian countries South Korea, Singapore and Taiwan. Economically, the analysis is based on notions of stochastic long-run convergence and business cycle synchrony in the GDPs. According tests for...

As a function of strike and time to maturity the implied volatility estimation is a challenging task in financial econometrics. Dynamic Semiparametric Factor Models (DSFM) are a model class that allows for the estimation of the implied volatility surface (IVS) in a dynamic context, employing...

Während in Europa hitzig über die Konsequenzen einer möglichen Wiederwahl Donald Trumps debattiert wird, offenbaren die Diskussionen in Australien, Japan und Südkorea größeres Vertrauen in Washingtons Sicherheitsversprechen. Dort ist die Angst, dass die USA ihre erweiterte nukleare...

Using longitudinal time-series data, this paper analyzes the causes of the recent sharp increase in household expenditure on telecommunications in South Korea with a linear approximate almost ideal demand system (LA/AIDS) model. The main results are as follows. First, Korean household demand for...

This article investigates how adolescent Internet addiction is assessed by parents based on children's Internet use time and parental demographic characteristics. The authors measured children's level of Internet addiction based on Young's scale evaluated by their parents to mitigate the social...

This empirical study shows how people use their smartphones by employing the rational addiction model of Becker and Murphy. The analysis uses micro-level panel data on the monthly usage of smartphone applications (so-called “apps”) derived from 10,337 users in South Korea, from 2012 to 2016....