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Preisgarantien im Einzelhandel : nicht verbraucherfreundlich, sondern ein Instrument zur Durchsetzung hoher Preise

Arnold, Tone; Baake, Pio; Schwalbe, Ulrich - In: DIW-Wochenbericht : Wirtschaft, Politik, Wissenschaft 79 (2012) 16, pp. 12-16

Preisgarantien im Einzelhandel scheinen auf den ersten Blick Ergebnis eines intensiven Wettbewerbs zu sein. Theoretische Analysen und empirische Studien zeigen jedoch, dass dies in der Regel nicht der Fall ist. Preisgarantien und hier vor allem Garantien, bei denen mehr als die Differenz zu...

Persistent link: https://www.econbiz.de/10010079385

Network centrality and stock market volatility : the impact of communication topologies on prices

Hein, Oliver; Schwind, Michael; Spiwoks, Markus - In: Journal of finance and investment analysis 1 (2012) 1, pp. 199-232

We investigate the impact of agent communication networks on prices in an artificial stock market. Networks with different centralization measures are tested for their effect on the volatility of prices. Trading strategies diffuse through the different network topologies, mimetic contagion...

Persistent link: https://www.econbiz.de/10010079539

Transaction tax and market volatility : evidence from the Taiwan futures market

Liau, Yung-shi; Wu, Yi-chen; Hsu, Hsinan - In: Journal of applied finance & banking 2 (2012) 2, pp. 45-58

This paper employs an asymmetric component generalized autoregressive conditional heteroskedasticity (AC-GARCH) model to test the relation between securities transaction tax (STT) and market volatility. Proponents of an STT argue that such a tax will reduce market volatility by discouraging the...

Persistent link: https://www.econbiz.de/10010009121

Effect of corporate leniency program on cartel dissolution under market uncertainty

Cai, Xiaowei - In: Advances in management & applied economics 2 (2012) 4, pp. 141-160

by the antitrust agency. We develop a dynamic model in which an incumbent cartel decides whether or not to voluntarily … dissolve the cartel based on the observed profit and the antitrust agency’s cartel deterrence index when there is leniency … cartel detection and prosecution across industries. Based on the market structure such as the concentration level, demand …

Persistent link: https://www.econbiz.de/10010097667

La prestación del servicio postal universal en un contexto de precio uniforme y descremado del mercado : ¿Existe riesgo de graveyard spiral?

Pateiro Rodríguez, Carlos; Prado Domínguez, Javier; … - In: Atlantic review of economics 2 (2011), pp. 1-27

This paper focuses on the problems posed by the uniform price and market cream skimming in a context in which the incumbent is restricted asymmetric prices and products and analyzes the risks of a graveyard spiral process. We point that the price elasticity of demand, the brand loyalty and the...

Persistent link: https://www.econbiz.de/10010049031

Algunas observaciones acerca del uso de software en la estimación del modelo Half-Normal

Ortega Irizo, Francisco Javier; Gavilán Ruiz, José Manuel - In: Revista de métodos cuantitativos para la economía y … 11 (2011), pp. 3-16

Using the maximum likelihood method, in order to estimate Half-Normal stochastic frontier production models, entails several practical di±culties that, perhaps, have not been su±ciently emphasised. In employing FRONTIER software, we analyse the case in which the estimation obtained suggests...

Persistent link: https://www.econbiz.de/10009957389

A time-varying parameter vector autoregression model for forecasting emerging market exchange rates

Kumar, Manish - In: International journal of economic sciences and applied … 3 (2010) 2, pp. 21-39

In this study, a vector autoregression (VAR) model with time-varying parameters (TVP) to predict the daily Indian rupee (INR)/US dollar (USD) exchange rates for the Indian economy is developed. The method is based on characterization of the TVP as an optimal control problem. The methodology is a...

Persistent link: https://www.econbiz.de/10009958060

Volatility shifts and persistence in variance : evidence from the sector indices of Istanbul Stock Exchange

Çağlı, Efe Çağlar; Mandacı, Pınar Evrim; … - In: International journal of economic sciences and applied … 4 (2011) 3, pp. 119-140

This study examines the impact of volatility shifts on volatility persistence for three major sector indices of Istanbul Stock Exchange (ISE) and ISE National 100 index over the period beginning from 1997 and ending in 2009. The exponential generalized autoregressive conditional...

Persistent link: https://www.econbiz.de/10009958079

On the importance of the arrival of new information

Chumacero, Rómulo A. - In: Estudios de economía 37 (2010) 2, pp. 207-215

This paper develops a framework for evaluating the importance of the arrival of new information for forecasting, estimation, and decision making. By fusing known and recently developed statistical tests and concepts, the paper provides guidelines for detecting outliers, influential observations,...

Persistent link: https://www.econbiz.de/10009959113

Modeling stock market indexes with copula functions

Leśkow, Jacek; Mokrzycka, Justyna; Krawiec, Kamil - In: E-Finanse : finansowy kwartalnik internetowy 7 (2011) 2, pp. 1-16

Contemporary financial risk management is significantly based on the analysis of time series of returns. One of the most significant errors frequently committed by analysts is the predominant use of normal distributions when it is clear that the returns are not normal. Copula models and models...

Persistent link: https://www.econbiz.de/10009959716