zeigt, dass eine klare Trennung von Motiven für Diversifikation und Refokussierungsstrategien auf Basis individueller …. Diversification strategies are the subject of intensive debate in media economic research. The aim of this study is to analyze the … drivers for diversification and refocusing actions in media organizations. Part 1 examines the state of the art in media …

studies the effect of profit volatility on the firm/plant level product diversification. Chapter 2 profiles diversification … relationship between diversification and volatility at the firm level. Firm level diversification decreases as the aggregate …Studies of the volatility of the U.S. economy suggest a noticeable change in mid 1980s. There is some empirical …

-separability of the utility function, inflation aversion, nominal transaction frictions). The monograph is organized as follows … market share competition with the assumption that agent?s behavior is characterized by inflation aversion. Chapter IV is … devoted to the GMM estimation of crucial parameters of the inflation-aversion model of the previous chapter. A model featuring …

periods is attributed to the time-varying volatility of shocks. The history for inflation is more nuanced, as a more vigorous …) model of the U.S. economy with both stochastic volatility and parameter drifting in the Taylor rule. They use the results of … sources of the rise and fall of the Great Inflation from the late 1960s to the early 1980s and of the Great Moderation of …

volatility on foreign exchange markets. Starting point is the market participant's microeconomic investment decision, which is … trading volume and volatility on foreign exchange markets. We apply various two-country-models with representative market … participants, lock-in effect and risk diversification and also a comprehensive model with heterogeneous participants - investors …

into volatility persistence in stock returns. In part two, I show that the introduction of continuous trading on the WSE is … volatility on days after limit hits and positive autocorrelation in stock returns. I do not find significant advantages of this …

equilibrium to achieve a simple, linear model, that only depends on inflation, the output gap, and the interest rate, in the case … inflation dynamics is crucial. Because of the controversial debate on the importance of expectations, the consequences of … central banks should react stronger to changes in inflation and output under uncertainty. Furthermore, it is shown that …

mid-1980s, in contrast to the simultaneous volatility decline of most aggregates, including overall hours and employment … the skill premium, it is interesting to check its short-run implications for employment volatility. The numerical results … DSGE models' implications for overall labor market' volatility. …

, which includes secular changes in the economic structure and a substantial reduction of output volatility. We find two … robust structural breaks in volatility at the end of WWII and in the mid-eighties, showing that the GM still holds in the … longer perspective. Furthermore, we show that GM volatility reduction is only linked to expansion features. We also date the …