Risk management in the oil industry: can information on long-run equilibrium prices be utilized?

O Gjolberg, T Johnsen - Energy Economics, 1999 - Elsevier
We analyze co-movements between the prices of crude oil and major refined products during
the period 1992–1998. Specifically, we explore the existence of long-run equilibrium price …

Is there a relationship between Morningstar's ESG ratings and mutual fund performance?

M Steen, JT Moussawi, O Gjolberg - Journal of Sustainable …, 2020 - Taylor & Francis
… C o n t r p = ∑ i = 1 n ⁡ w i C o n t r p i … -momentum’ is defined as: E S G m o m = P o r t f o
l i o S u s t a i n a b i l i t y S c o r e − H i s t o r i c a l P o r t f o l i o S u s t a i n a b i l i t y S c o r e …

Real options in the forest: what if prices are mean-reverting?

O Gjolberg, AG Guttormsen - Forest Policy and Economics, 2002 - Elsevier
When solving the Faustmann problem in a stochastic setting, it is typically assumed that prices
follow a random walk process. In the present paper, we instead assume that timber prices …

Price relationships in the petroleum market: an analysis of crude oil and refined product prices

F Asche, O Gjølberg, T Völker - Energy economics, 2003 - Elsevier
In this paper the relationships between crude oil and refined product prices are investigated
in a multivariate framework. This allows us to test several (partly competing) assumptions of …

Are commodity markets characterized by herd behaviour?

M Steen, O Gjolberg - Applied Financial Economics, 2013 - Taylor & Francis
Twenty years ago, Pindyck and Rotemberg concluded that commodity prices exhibited
excessive co-movements and that commodity markets were characterized by herd behaviour. …

[PDF][PDF] The biased short-term futures price at Nord Pool: can it really be a risk premium

O Gjolberg, TL Brattested - The Journal of Energy Markets, 2011 - researchgate.net
We analyze the forecasting performance of the four-week and six-week futures prices in the
Nordic power market (Nord Pool), from 1995 to 2008. We find that short-term futures have …

[PDF][PDF] Electricity futures: Inventories and price relationships at Nord Pool

O Gjolberg, T Johnsen - Norwegian School of Economics and Business …, 2001 - Citeseer
Electricity is a non-storable commodity for consumers, while hydropower producers may store
future electricity as water in their reservoirs. Consequently, there is an asymmetry between …

Commodity value-at-risk modeling: comparing RiskMetrics, historic simulation and quantile regression

M Steen, S Westgaard, O Gjølberg - 2015 - ntnuopen.ntnu.no
… Support for no systematic change in volatility for commodities is found in Steen and Gjølberg
(2014a,b). In the latter paper, they found that skewness and kurtosis have not changed …

Testing the central market hypothesis: a multivariate analysis of Tanzanian sorghum markets

F Asche, O Gjølberg, AG Guttormsen - Agricultural Economics, 2012 - Wiley Online Library
The central market hypothesis is important in the analysis of market integration because it
implies a specific market structure while avoiding a simultaneity problem. However, despite its …

Are Pakistan's rice markets integrated domestically and with the international markets?

B Ahmad, O Gjølberg - SAGE Open, 2015 - journals.sagepub.com
We analyze whether Pakistan has become one domestically integrated rice market and whether
Pakistan’s rice markets are integrated with the international markets, using monthly data …