In virtually all texts of intermediate Macroeconomics the Mundell-Fleming model is taught. But his estimate is not addressed in the classical texts of econometrics. I've always wanted to read some reference, but my searches have not worked

In virtually all texts of intermediate Macroeconomics$^1$ the Mundell-Fleming model is taught. But his estimate is not addressed in the classical texts of econometrics. I've always wanted to read some reference, but my searches have not worked

1: "Most open macroeconomy models in the textbooks are variations of the Mundell-Fleming model." Ohno Lecture notes: Mundell-Fleming Model with a Floating Exchange Rate