NO.PZ2023071902000024问题如下 QuestionGiven a poliinterest rate of 3.5%, a retrengrowth rate of 1.2% in the base economy, ana long-term inflation expectation of 3%, how woulthe stanof a centrbank operating within a reliable inflation-targeting framework best characterize A.neutral.B.contractionary.C.expansionary. SolutionC is the correchoice. Given a 1.2% retrengrowth rate ana 3% long-term inflation expectation, it incates a 4.2% neutrinterest rate thesn't accelerate or celerate the base economy. The polirate of 3% is lower ththis 4.2% neutrrate. When the polirate is below the neutrrate, the monetary poliis emeexpansionary.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary policyC是正确的选择。考虑到1.2%的实际趋势增长率和3%的长期通胀预期，这表明4.2%的中性利率不会加速或减速基础经济。3%的政策利率低于4.2%的中性利率。当政策利率低于中性利率时，货币政策被认为是扩张性的。 这个知识点在讲义的哪里？
NO.PZ2023071902000024问题如下 QuestionGiven a poliinterest rate of 3.5%, a retrengrowth rate of 1.2% in the base economy, ana long-term inflation expectation of 3%, how woulthe stanof a centrbank operating within a reliable inflation-targeting framework best characterize A.neutral.B.contractionary.C.expansionary. SolutionC is the correchoice. Given a 1.2% retrengrowth rate ana 3% long-term inflation expectation, it incates a 4.2% neutrinterest rate thesn't accelerate or celerate the base economy. The polirate of 3% is lower ththis 4.2% neutrrate. When the polirate is below the neutrrate, the monetary poliis emeexpansionary.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary policyC是正确的选择。考虑到1.2%的实际趋势增长率和3%的长期通胀预期，这表明4.2%的中性利率不会加速或减速基础经济。3%的政策利率低于4.2%的中性利率。当政策利率低于中性利率时，货币政策被认为是扩张性的。 政策利率为何是3%？
