Der Krieg in der Ukraine belastet die Weltwirtschaft in einer Phase, in der die Inflation bereits stark gestiegen ist und die US-Notenbank das Ende der extrem expansiven Geldpolitik eingeläutet hat. Höhere Rohstoffpreise treiben die Inflation zusätzlich an und führen zusammen mit den...

A number of factors that contributed to the weakening of the global economy in the past year have recently improved significantly. Energy prices have reversed, the prospects for a steady expansion in China have improved with the abandonment of the zero-Covid policy, and supply bottlenecks have...

Wichtige Rahmenbedingungen, die für die Abschwächung der Weltkonjunktur im vergangenen Jahr wesentlich verantwortlich waren, haben sich zuletzt deutlich verbessert. So sind die Energiepreise wieder gesunken, in China haben sich mit der Abkehr von der Null-Covid-Politik die Aussichten auf eine...

In this paper we study the presence of calendar anomalies in the main Latin- American stock markets, for the 1993 to 2007 period. The literature has shown that the detection of those effects may depend on error distribution assumptions (Baker et al., 2008), and that their existence could be due...

In this study, we examine stock market shocks using a Global Vector Autoregressive (GVAR) model encompassing 26 countries from January 1999 to June 2022. Our findings reveal that i) shocks originating from advanced economies (AD) exhibit greater persistence in generating fluctuations compared to...

This contribution analyzes bull and bear markets from 1954:1-2011:2 in the US-stock index S&P 500. Thereby, a 2-State-Markov-Switching model is applied to figure out bull and bear market regimes within the latter period, whereby the estimated state probabilities are used to estimate a dummy...

Due to the development of financial markets, products, financial and mathematical models, portfolio selection today represents a comprehensive set of activities. Investors take into consideration many different factors, such as the market factors, return distribution characteristics and...

This paper discusses how to introduce liquidity into the well known mean-variance framework of portfolio selection using a representative sample of Spanish equity portfolios. Either by estimating mean-variance liquidity constrained frontiers or directly estimating optimal portfolios for...