POVMs and Naimark's theorem without sums

We provide a definition of POVM in terms of abstract tensor structure only. It is justified in two distinct manners. i. At this abstract level we are still able to prove Naimark's theorem, hence establishing a bijective correspondence between abstract POVMs and abstract projective measurements on an extended system, and this proof is moreover purely graphical. ii. Our definition coincides with the usual one for the particular case of the Hilbert space tensor product. We also point to a very useful normal form result for the classical object structure introduced in quant-ph/0608035

Countercyclical taxation and price dispersion

In this paper, we explore the benefits from a supply-side oriented fiscal tax policy within the framework of a New Keynesian DSGE model. We show that countercyclical tax rules, which are contingent on the observed welfare gap or on the cost-push shock and levied on value added, remarkably reduce the adverse impact of cost-push shocks on welfare. We state that the tax rule establishes a path for the evolution of marginal cost at the firm level that largely prevents built up of price dispersion. We highlight that this tax policy is also effective under a balancedbudget regime. Hence, fiscal policy can disencumber monetary policy in the light of cost-push shocks. --Countercyclical fiscal policy,welfare costs,nominal rigidities

Countercyclical Taxation and Price Dispersion

In this paper, we explore the benefits from a supply-side oriented fiscal tax policy within the framework of a New Keynesian DSGE model. We show that countercyclical tax rules, which are contingent on the observed welfare gap or alternatively on the markup shock and levied on value added, reduce remarkably the inverse impact of cost push shocks. We state that the tax rule establishes a path for the evolution of marginal cost at the firm level that largely prevents built up of price dispersion. We highlight that this tax policy is also effective under a balancedbudget regime. Hence, fiscal policy can disencumber monetary policy in the light of cost push shocks.Countercyclical fiscal policy, welfare costs, nominal rigidities

Bank Behavior and the Cost Channel of Monetary Transmission

This paper presents a New Keynesian model that dwells on the role of banks in the cost channel of monetary policy. Banks extend loans to firms in an environment of monopolistic competition by setting the loan rate according to a Calvo-type staggered price setting approach, which means that the adjustment of the aggregate loan rate to a monetary policy shock is sticky. We estimate the model for the Euro area by adopting a minimum distance approach. Our findings exhibit that, first, frictions on the loan market influence the propagation of monetary policy shocks as the pass-through of a change in the money market rate to the loan rate is incomplete, and, second, the cost channel is operating, but the effect is weak since inflation is driven by real unit labor costs rather than the loan rate. Our main conclusion is that the strength of the cost channel is mitigated as banks shelter firms from monetary policy shocks by smoothing lending rates.bank behavior, cost channel, minimum distance estimation

Bank Behavior and the Cost Channel of Monetary Transmission

This paper presents a New Keynesian model that dwells on the role of banks in the cost channel of monetary policy. Banks extend loans to firms in an environment of monopolistic competition by setting the loan rate according to a Calvo-type staggered price setting approach, which means that the adjustment of the aggregate loan rate to a monetary policy shock is sticky. We estimate the model for the Euro area by adopting a minimum distance approach. Our findings exhibit that, first, frictions on the loan market influence the propagation of monetary policy shocks as the pass-through of a change in the money market rate to the loan rate is incomplete, and, second, the cost channel is operating, but the effect is weak since inflation is driven by real unit labor costs rather than the loan rate. Our main conclusion is that the strength of the cost channel is mitigated as banks shelter firms from monetary policy shocks by smoothing lending rates. --Bank behavior,cost channel,minimum distance estimation

Bank Loan Supply and Monetary Policy Transmission in Germany: An Assessment Based on Matching Impulse Responses

This paper addresses the credit channel in Germany by using aggregate data. We present a stylized model of the banking firm in which banks decide on their loan supply in light of uncertainty about the future course of monetary policy. Applying a vector error correction model (VECM), we estimate the response of bank loans after a monetary policy shock taking into account the reaction of the output level and the loan rate. We estimate our model to characterize the response of bank loans by matching the theoretical impulse responses with the empirical impulse responses to a monetary policy shock. Evidence in support of the credit channel can be reported.monetary policy transmission, credit channel, loan supply, loan demand, minimum distance estimation

Bank Loan Supply and Monetary Policy Transmission in Germany: An Assessment based on Matching Impulse Responses

This paper addresses the credit channel in Germany by using aggregate data. We present a stylized model of the banking firm, in which banks decide on their loan supply in the light of uncertainty about the future course of monetary policy. Applying a vector error correction model (VECM), we estimate the response of bank loans after a monetary policy shock in consideration of the reaction of the output level and the loan rate. We estimate our model to characterize the response of bank loans by matching the theoretical impulse responses with the empirical impulse responses to a monetary policy shock. Evidence in support of the credit channel can be reported. --Monetary policy transmission,credit channel,loan supply,loan demand,minimum distance estimation

Bank Loan Supply and Monetary Policy Transmission in Germany: An Assessment Based on Matching Impulse Responses

This paper addresses the credit channel in Germany by using aggregate data. We present a stylized model of the banking firm in which banks decide on their loan supply in the light of expectations about the future course of monetary policy. Applying a VAR model, we estimate the response of bank loans to a monetary policy shock taking into account the reaction of the output level and the loan rate. We estimate our model to evaluate the response of bank loans by matching the theoretical impulse responses with the empirical impulse responses to a monetary policy shock. Evidence in support of the credit channel can be reported.Monetary policy transmission, credit channel, loan supply, minimum distance estimation.