The impact of variability and correlation of selected geological parameters on the economic assessment of bituminous coal deposits with use of non-parametric bootstrap and copula-based Monte Carlo simulation

If the IRR reflects the level of expected return of investment, it can be stated that the additional risk premium resulting from the volatility and correlation of analysed deposits parameters of bituminous coal should be relatively low and less than 2.4 pp in similar cases. The analyses also revealed that the amount of available geological information is of secondary importance in the valuation process, as it does not negatively affect the regularity and symmetry of predicted outcomes.