... observations lacking policy rates, we use an alternative interest rate that is a good proxy—such as an interbank interest rate or interpolate the series using changes in an interest rate that ... Notwithstanding data limitations that may hinder the accuracy of the NRIR estimates, we also find that Costa Rica, Dominican Republic, Guatemala, and Paraguay, still have a 19 See Marques and Manrique ... appropriateness of the current monetary stance, we calculate the interest rate gap—defined as the difference between the actual policy rate and the neutral real interest rate. 22 For several of the...