This paper assesses the day of the week effect of the daily depreciation of the Turkish lira (TL) against the US dollar (USD) and its volatility. The empirical evidence from Turkey presented here suggests that Thursdays are associated with higher and Mondays with lower depreciation rates compared to those of Wednesdays. Moreover, Mondays and Tuesdays are associated with higher volatility than W...

∗Department of Neurology, York District Hospital, Wigginton Road, York YO3 7HE, UK; †The Roald Dahl EEG Unit, Alder Hey Children’s Hospital, Eaton Road, West Derby, Liverpool L12 2AP, UK; ‡Birmingham University Seizure Clinic, Queen Elizabeth Psychiatric Hospital, Edgbaston, Birmingham B15 2QZ, UK; §The National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK; ¶The Su...

Objective To assess clinical and patient-reported outcomes of implant-prosthetic rehabilitations in patients with a history head–neck cancer (HNC), treated tumor resection without (TR) or adjuvant radiotherapy (TR/RT). A healthy cohort rehabilitated the same reconstructive protocols served as control group (C). Materials Methods total 28 women 29 men were considered present retrospective study....

We study the consequences of indexing, i.e. commiting to invest in risky assets only via the market portfolio. We extend the canonical rational expectations model (Grossman and Stiglitz, 1980) to allow for multiple assets and endowment shocks, and show that indexing imposes a negative externality on other uninformed agents. More indexing makes informed trading on the market more profitable, whi...

We are the first paper to analyse and confirm the existence and extent of rational informational herding and rational informational contrarianism in a financial market experiment, and to compare and contrast these with the equivalent irrational phenomena. In our study, subjects generally behaved according to benchmark rationality. Moreover, traders who should herd or be contrarian in theory are...

The overvaluation hypothesis (Miller 1977) predicts that a) stocks are overvalued when there are short selling restrictions and that b) the overvaluation is increasing in the degree of divergence of opinion. We design an experiment that allows us to test these predictions in the laboratory. Our results support the hypothesis that prices are higher in the presence of short selling constraints. T...

The paper analyses a simplified version of a Glosten-Milgrom style specialist security trading model with trade-timing. In a setting where traders are differentially informed, if the best-informed investors have a sufficiently strong or weak impact on prices then the investors with the strongest impact on prices delay their investment strategically, pretending to be the low-impact types. JEL Cl...

This paper aims at improved accuracy in testing for long-run predictability in noisy series, such as stock market returns. Long-horizon regressions have previously been the dominant approach in this area. We suggest an alternative method that yields more accurate results. We find evidence of predictability in S&P 500 returns even when the confidence intervals are constructed using model-free me...

We analyze the ups and downs in economic growth recent decades by constructing a model with recurrent bubbles, crashes, endogenous growth. Once realized, bubbles crowd investment stimulate growth, but expectation about future crowds out reduces identify bubbly episodes estimating using US data. Counterfactual simulations suggest that IT housing not only caused booms also lifted GDP almost 2 per...

This article proposes a functional dynamic factor model for the evaluation of the impact of scalar– and curve–valued factors on the shapes of intraday price curves. The asymptotic theory leads to practically useful confidence intervals for the factor coefficients. The main findings pertain to the impact of the shapes of intraday oil futures on the shapes of intraday prices of blue chip stocks. ...