We take a decision-theoretic view on the question of how to use instrumental variables and method of moments. Since prior beliefs play an inevitably strong role when instruments are possibly "weak", or when the number of instruments is large relative to the number of observations, it is...

Russian Abstract: Оценка моделей с изменяющимися во времени параметрами нашла широкое распространение в макроэкономических исследованиях, реализуемых в течение...