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The present study examined the effects of anti-oxidant vitamin supplementation on mood and cognitive functioning in 205 volunteers (110 females, 95 males; age range: 60-80 years). In this randomised, double-blind, placebo-controlled study, the volunteers received either anti-oxidant supplementation (daily dosage 12mg/d β-carotene, 400 mg/d α-tocopherol and(More)
Analytical examination of loss functions' families demonstrates that investors' utility maximisation is determined by their risk attitude. In computational settings, stock traders' fitness is assessed in response to a slow-step increase in the value of the risk aversion coefficient. The experiment rejects the claims that the accuracy of the forecast does(More)
In this chapter, I consider a design framework of a computational experiment in finance. The examination of statistics used for economic forecasts evaluation and profitability of investment decisions, based on those forecasts, reveals only weak relationships between them. The " degree of improvement over efficient prediction " combined with directional(More)
Price forecasting and trading strategies modelling are examined with major international stock indexes under different time horizons. Results demonstrate that an accurate prediction is equally important as a stable saving rate for long-term survivability. The best economic performances are achieved for a one-year investment horizon with longer training not(More)
Price forecasting and trading strategies modeling are examined with major international stock indexes under different time horizons. Results demonstrate that an accurate prediction is equally important as a stable saving rate for long-term survivability. The best economic performances are achieved for a one-year investment horizon with longer training not(More)
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