The efficient market hypothesis (EMH) fails as a valid model of financial markets. The fractal market hypothesis (FMH) is a more general alternative way to the EMH. The FMH is formed on the following parameter space: agents’ investment horizons. A financial market is more stable when a fractal character in the structures of agent’s investment horizons is adopted. For computer simulations, the c...

This paper assesses the impact of product market competition on job instability. Product market competition is measured by the price-cost margin, and job instability is proxied by the intensity of the use of temporary contracts. Using both worker data from the Spanish Labor Force Survey and …rm data from the Spanish Business Strategies Survey, I show that job instability rises with competition....

We study competitive equilibria in the basic Fisher market model, but with indivisible goods. Such equilibria fail to exist in the simplest possible market of two players with equal budgets and a single good, yet this is a knife’s edge instance as equilibria exist once budgets are not precisely equal. Is nonexistence of equilibria also a knife-edge phenomenon in complex markets with multiple go...

This paper focuses on the role that production subsidies play in a Bertrand mixed duopoly. The paper examines four regimes: mixed and private duopoly, each with and without subsidies. The results of this study are compared with the findings of the existing Cournot mixed market literature. As a result, the paper shows that that the introduction of production subsidies into the analyses of Bertra...

the ribs are essential structures of the osseous thorax that provide certain significant information and aid interpretation of radiologic images in daily routine practice. intrathoracic rib is a rare congenital anomaly that is usually discovered incidentally, but may cause in vain interventions in case of being unaware. we herein report an intrathoracic rib in a girl whose chest x-ray was stran...

abstract-cervicovaginal cytology is still a widely used cancer screening method that is well established in most countries. the present study aims at detecting and classifying squamous intraepithelial abnormalities and effects of certain infectious agents, particularly the cytopathic effects of human papillomavirus (hpv) in a series of cervicovaginal smears, according to the bethesda system (tb...

large intercoronary communications in the absence of obstructive coronary artery disease constitute a very rare coronary artery anomaly in which there is a readily visible connection between the 2 coronary arteries with a unidirectional or bidirectional blood flow; consequently, this anomaly may be misinterpreted as a functioning collateral vessel, indicative of an unrecognized proximal coronar...

for the first time, a spectrum of morphological abnormalities have been produced in developingmouse embryos (n=50), by injecting (ip) 75 and 100 mg/kg of maternal body weight of a new quinazolinonederivative, 4(3h)quinazolinone-2-propyl-2-phenylethyl(qppe), on days 9, 10 and 11 of gestation.measurements of the length of the crown-rump (cr), weight of body of the embryos and placenta on day 17sh...

ultrasonography is the only practical method for obtaining images of the posterior segment of the eye when the light-conducting media are opaque. in this study, 182 dogs with ocular abnormalities presented to the department of veterinary surgery and radiology from december 2008-august 2010 were included. all the animals were subjected to detailed ophthalmic examination and b-scan ultrasonograph...

This paper studies the financial market responses to macroeconomic news announcements, in the form of volatility and jumps. The traditional empirical literature using daily or lower-frequency data finds mixed or relatively weak evidence of big price movements during the announcement periods, which seems to falsify the efficient market hypothesis. However, with the advance of high frequency data...