What does "proprietary option dataset" mean

Question

We account for the volatility risk premium in the same spirit as Prokopczuk and Wese Simen (2014), but apply the procedure in the VaR prediction context instead. Moreover, we focus on three major equity indices with publically available implied volatility indices, rather than the commodity market, which requires a proprietary option dataset.

Answer 1

مجموعه داده های اختصاصی انتخاب/ گزینه/ قابلیت

مجموعه داده های قابلیتی/ گزینه ای/ انتخابی اختصاصی