2014) First-principles investigation on structural, elastic, electronic and thermodynamic properties of filled skutterudite PrFe 4 P 12 compound for thermoelectric applications, Molecular Simulation, 40:15, 1236-1243, Filled skutterudite compound PrFe 4 P 12 is studied using the full potential linear muffin-tin orbital method with the local density approximation for the exchange correlation potential to investigate the systematic trends for structural and elastic properties of the cubic PrFe 4 P 12 skutterudite. The calculated ground state quantities such as the lattice constant and internal free parameters are in fairly good agreement with the available experimental data. The elastic constants and their pressure dependence are obtained by calculating the total energy versus volume-conserving strains using the Mehl model. Pressure and temperature effects on the lattice constant, bulk modulus, thermal expansion coefficient, Debye temperature and heat capacity are obtained in the range of 0 -30 GPa and 0 -1000 K. Reduction of bulk modulus and Debye temperature with temperature essentially indicates the thermal softening of the rare earth-filled skutterudites lattice.