Investitionen werden vor allem ökonomisch untersucht. Die Ökonomie kann auch für jene Investitionen Hinweise geben, in denen es nicht um Geld, sondern um andere Ressourcen geht, die für Gesundheit und Wohlsein wichtig sind.
Das Wissen, wie im Finanzbereich Investitionsentscheidungen zu treffen sind und welche Fehler oft begangen werden, kann eine Hilfe bei der Entscheidung über den ärztlichen Berufsweg liefern.
The introduction of the European monetary union (EMU) led to a convergence of the participating countries in many ways. One particular aspect is the diversification potential among different financial markets. While during the 1990s country effects typically dominated industry effects in magnitude, more recent studies stress the importance of industry diversification when it comes to portfolio construction. We show the increasing correlations among countries' equity market returns and the contemporaneous decrease in sector correlations and confirm the growing importance of industry effects by applying a bootstrapping method.
Supported by this finding we implement momentum strategies based on countries and industries, respectively, in order to compare their performance. Due to the better diversification potential, most of the sector models outperform the country frameworks on a risk adjusted basis
Using an empirical New-Keynesian model with optimal discretionary monetary policy, we estimate key parameters---the central bank's preference parameters; the degree of forward-looking behavior in the determination of inflation and output; and the variances of inflation and output shocks-to match some broad characteristics of U.S. data. Our obtained parameterization implies a small concern for output stability but a large preference for interest rate smoothing, and a small degree of forward-looking behavior in price-setting but a large degree of forward-looking in the determination of output. Our methodology also allows us to carefully examine the consequences of alternative parameterizations and to provide intuition for our results.
