This paper aims to analyze the main indicators used to express the efficiency of renewable energy investments at macroeconomic level. Based on three econometric models, we present the calculation method of these indicators, along with interpretation. In the study are included countries with very...

Crude oil is a major driver of the global economy and its price dynamics are a key indicator for producers, consumers and investors. The increasing volatility of crude oil prices in the last decade has encouraged many researchers to model its dynamics. Recent studies have tried to explain this...

This paper investigates causal links between economic growth, oil consumption and natural gas usage in Poland on the basis of quarterly data for the period Q1 2000 – Q4 2009. The application of the Toda–Yamamoto procedure, a nonlinear Granger causality test, bootstrap techniques and an...

We reinvestigate the "rockets and feathers" effect between retail gasoline and crude oil prices in a new framework of fractional integration, long-term memory and borderline (non)stationarity. The most frequently used error-correction model is examined in detail and we find that the prices...

In this paper we develop a multi-factor model for the joint dynamics of related commodity spot prices in continuous time. We contribute to the existing literature by simultaneously considering various commodity markets in a single consistent model and show in an application the economic...

This paper examines how energy-output ratios in Fiji have responded to the energy crises and in particular if they have declined after the shocks. The expectation is that energy efficiency should improve after the oil shocks. For this purpose we used at first a few simpler procedures and then...

In this paper, we investigate the pricing of crack spread options. The special focus is laid on the question, of whether univariate modeling of the crack spread or explicit modeling of the two underlyings is preferable. Therefore, we contrast the bivariate GARCH volatility model for...