A class of stochastic unit-root bilinear processes, allowing for GARCH-type effects with asymmetries, is studied. The volatility is not bounded away from zero and is minimum for non zero innovations, which are important differences with the standard GARCH. Necessary and sufficient conditions for...

The first essay studies the effects of exogenous and endogenous shocks on output sustainability in Central Eastern Europe and Russia during the 2000s. It expands traditional vector autoregressive model to a multi-country model that relates bank real lending, the cyclical component of output and...

In the literature, many statistical models have been used to investigate the existence of a deterministic time trend, changing persistence and nonlinearity in macroeconomic and financial data. Good understanding of these properties in a univariate time series model is crucial when making...

This thesis addresses three current issues in maritime economics by the applicationof semi-parametric estimations within a generalized additive model framework. First, this thesis shows that there are vessel and contract specific differences intime charter rates for dry bulk vessels. The...