This paper statistically analyses and attempts to predict the most likely winners of the Euro 2000 football tournament on the basis of the seasonal coefficients of variation (CVs) of the end-of-season points, which were computed from the top division final standings of participating countries of...

Efforts to simulate turbulence in the financial markets include experiments with the logistic equation: x(t)=kappa x(t-1)[1-x(t-1)], with 0 x(t)1 and 0 = kappa 4. Visual investigation of the logistic equation show the various stability and instability regimes for the various value of the...

(This abstract and the paper are in Turkish.) Ekonomik krizler; herhangi bir mal, hizmet, uretim faktoru veya doviz piyasasindaki fiyat ve/veya miktarlarda, kabul edilebilir bir degisme sinirinin otesinde gerceklesen siddetli dalgalanmalar olarak tanimlanabilir. Soz konusu krizlerin ortaya...

We propose a continuum model for the description of buyer and seller dynamics in an Internet market. The relevant variables are the research effort of buyers and the sellers' reputation building process. We show that, if a commercial website gives consumers the possibility to rate credibly...

The investment acceleration principle is a heuristic for modeling investment time series out of consumption time series. The model presented herein develops a disaggregated accelerator equation whose coefficients are the weights of a Kohonen neural net that represents firms' decision-making....

Distributions for returns are used to compute the capital charge for portfolios in investment banks. The mainstream definition of returns is based on closing prices and neglects the important effects of intraday trading activity on the losses . In this paper we introduce ''minimal returns'', a...

When analysing food consumption data a number of problems arise when one departs from the comparative statics of conventional demand theory. Two of these properties, non-linearity and non-stationarity present a major challenge for econometric modelling. A new method for time series analysis,...

Since the early 1990s, the Zambian government has undertaken major economic reforms. A sharp stabilisation early in the decade was followed by reforms in agricultural marketing, a large privatisation programme, sweeping trade policy reforms and reforms to the public sector. This paper uses...

In this study we are concerned with the impact of vocational training on the individual's unemployment duration in West Germany. The data basis used is the German Socio-Economic Panel (GSOEP) for the period from 1984 to 1994. To resolve the intriguing sample selection problem, i.e. to find an...

In a classical article, Granger (1966) argued that the levels of most economic time series have spectra that exhibit a smooth declining shape with considerable power at very low frequencies. He termed it "the typical spectral shape of an economic variable." Granger's assertion has not been...