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Khorrami, Paymon; Zentefis, Alexander K. - 2020

exists, arbitrage opportunities must also exist. Conversely, at times when arbitrage profits exist, asset markets are … susceptible to self-fulfilling fluctuations. The tight theoretical connection between price volatility and arbitrage is detectable …

Persistent link: https://www.econbiz.de/10012260973

Optimality and diversifiability of mean variance and arbitrage pricing portfolios

Pesaran, M. Hashem; Zaffaroni, Paolo - 2009

This paper investigates the limit properties of mean-variance (mv) and arbitrage pricing (ap) trading strategies using … literature for the exact pricing case to two other cases of asymptotic no-arbitrage and the unconstrained pricing scenarios. The … ; mean-variance portfolio ; arbitrage pricing ; market (beta) neutrality ; well diversification …

Persistent link: https://www.econbiz.de/10003910456

The role of factor strength and pricing errors for estimation and inference in asset pricing models

Pesaran, M. Hashem; Smith, Ron - 2019

In this paper we are concerned with the role of factor strength and pricing errors in asset pricing models, and their implications for identification and estimation of risk premia. We establish an explicit relationship between the pricing errors and the presence of weak factors that are...

Persistent link: https://www.econbiz.de/10012118575

Is hard Brexit detrimental to EU integration? : theory and evidence

Mikolajun, Irena; Viaene, Jean-Marie - 2018

integration benchmark that consists of the steady state production equilibrium characterized by arbitrage pricing and perfect …

Persistent link: https://www.econbiz.de/10011892540

High frequency trading and fragility

Cespa, Giovanni; Vives, Xavier - 2016

We show that limited dealer participation in the market, coupled with an informational friction resulting from high frequency trading, can induce demand for liquidity to be upward sloping and strategic complementarities in traders' liquidity consumption decisions: traders demand more liquidity...

Persistent link: https://www.econbiz.de/10011587522

Exchange competition, entry, and welfare

Cespa, Giovanni; Vives, Xavier - 2018

We assess the consequences for market quality and welfare of different entry regimes and exchange pricing policies in a context of limited market participation. To this end we integrate a two-period market microstructure model with an exchange competition model with entry in which exchanges...

Persistent link: https://www.econbiz.de/10011954459

Dynamic trading and asset prices : Keynes vs. Hayek

Cespa, Giovanni; Vives, Xavier - 2009

We investigate the dynamics of prices, information and expectations in a competitive, noisy, dynamic asset pricing equilibrium model. We show that prices are farther away from (closer to) fundamentals compared with average expectations if and only if traders over- (under-) rely on public...

Persistent link: https://www.econbiz.de/10003897551

Higher order expectations, illiquidity, and short-term trading

Cespa, Giovanni; Vives, Xavier - 2011

We propose a theory that jointly accounts for an asset illiquidity and for the asset price potential over-reliance on …

Persistent link: https://www.econbiz.de/10009011130

Non-standard errors

Menkveld, Albert J. - 2021

In statistics, samples are drawn from a population in a data-generating process (DGP). Standard errors measure the uncertainty in sample estimates of population parameters. In science, evidence is generated to test hypotheses in an evidence-generating process (EGP). We claim that EGP variation...

Persistent link: https://www.econbiz.de/10012696895

Terrorist attacks and financial markets

Bonekamp, Bas; Veen, Tom van - 2017

This paper investigates the magnitude and the duration of the effect of a terrorist attack on stock market indices. We investigate the impact of New York (2001), Madrid (2004), London (2005), Boston (2013), Paris (2015), Brussels (2016), Nice (2016) and Berlin(2016) on the stock indices of the...

Persistent link: https://www.econbiz.de/10011602465

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