This PhD thesis aims to study financial processes which have semi-heavy-tailed marginal distributions and may exhibit memory. The traditional Black-Scholes model is expanded to incorporate memory via an integral operator, resulting in a class of market models which still preserve the...

This thesis will first criticize standard financial theory. The focus will be on return distributions, efficient market hypothesis and the independence of returns. Part two gives the intuition to look at markets in a different view. Namely the one proposed by B. Mandelbrot who has shown that...

This study utilizes common time series forecasting methods to determine which of several simple, popular time series forecasting techniques was the best predictor of the decline in United States weekly RevPAR as the lodging industry entered its severe downturn in 2009. This study identifies the...

The average hotel manager recognizes the criticality of forecasting. However, most managers are either frustrated by complex models researchers constructed or appalled by the amount of time and efforts to master the nuances of statistical theories. As hotel competition intensifies, managers...

This dissertation studies the question of nonlinearities in the Phillips curve relationshipin France, Germany and Italy. The implications from the theoretical models are that themechanisms that make the Phillips curve nonlinear can work through different channels.Therefore, this thesis not just...

This dissertation studies three classes of estimators for the asymptotic variance parameter of a stationary stochastic process. All estimators are based on the concept of data "re-use" and all transform the output process into functions of an approximate Brownian motion process.The first class...

Darbe „Akcijų kainų kintamumo analizė“ nagrinėjami ir lyginami Baltijos (Lietuvos, Latvijos, Estijos) bei Lotynų Amerikos (Meksikos, Venesuelos) šalių duomenys. Atliekama pasirinktų akcijų kainų grąžų analizė. Jai naudojami trijų metų kiekvienos dienos duomenys (akcijų...

Diplominio darbo tikslas - išanalizuoti Europos Sąjungos (ES), Euro zonos ir keturių pasirinktų ES šalių gamintojų parduotos pramonės produkcijos kainų indekso (GKI) laiko eilutes ir atrinkti kiekvienai jų geriausią ARIMA prognozavimo modelį. Pirmiausia aptariamas GKI sudarymo...

This article examines the determinants of private investment in Bangladesh using the standard time series econometric analysis. The empirical results partially support the flexible accelerator hypothesis. It is partial in the sense that real interest rate is not statistically significant in...

The paper has a methodological character. It deals with possibilities of univariate time series models use in forecasting the regional labour market indicators. The main attention is focused on methodology for combining forecasts from different individual procedures. Forecasting performances of...