Systemic risk: The coordination of macroprudential and monetary policies in China

The literature documents the effects of monetary and macroprudential policies in controlling systemic risk, but empirical evidence of a systemwide framework that effectively coordinates the two policies is lacking. This study assesses the effectiveness, channels, and timeliness of monetary and macroprudential policies’ impacts on systemic risk in China from January 2009 to June 2018, and contributes to the discussion of how to coordinate these policies. Using an index synthesized from 28 indicators to proxy China’s systemic risk, we find the following: (1) A contractionary monetary (macroprudential) shock increases (reduces) systemic risk over the entire shock time period. (2) Macroprudential (monetary) policy is effective in the long (short) term. (3) The systemic risk intervention effect of monetary (macroprudential) policy is channeled through inflation control (asset price stability).     

Dichotomy between macroprudential policy and monetary policy on credit and inflation

This paper compares macroprudential policy and monetary policy using a simple New Keynesian model with credit. Macroprudential policy is effective in stabilizing credit with limited impact on inflation. Monetary policy stabilizes inflation, but is ‘too blunt’ for credit stabilization.     

The financial accelerator and monetary policy rules

Comparing Bernanke et al.’s (1999) financial accelerator model to a comparable model without an operational financial accelerator mechanism, we find that financial acceleration is reduced when monetary policy reacts to the output gap and when firm-specific volatility rises.     

Discretionary policy in a monetary union with sovereign debt

This paper examines the interactions between multiple national fiscal policymakers and a single monetary policy maker in response to shocks to government debt in some or all of the countries of a monetary union. We assume that national governments respond to excess debt in an optimal manner, but that they do not have access to a commitment technology. This implies that national fiscal policy gradually reduces debt: the lack of a commitment technology precludes a random walk in steady-state debt, but the need to maintain national competitiveness avoids excessively rapid debt reduction. If the central bank can commit, it adjusts its policies only slightly in response to higher debt, allowing national fiscal policy to undertake most of the adjustment. However, if it cannot commit, then optimal monetary policy involves using interest rates to rapidly reduce debt, with significant welfare costs. We show that in these circumstances the central bank would do better to ignore national fiscal policies in formulating its policy.     

Credit spread and monetary policy

We show that the spread-adjusted Taylor rule including a response to the credit spread is a theoretically optimal monetary policy under heterogeneous loan contracts. However, the optimal response to the credit spread is ambiguous, given the financial market structure.     

Trade credit, bank lending and monetary policy transmission

This paper investigates the role of trade credit in the transmission of monetary policy. Most models of the transmission mechanism allow firms to access only financial markets or bank lending according to some net worth criterion. In our model we consider external finance from trade credit as an additional source of funding for firms that cannot obtain credit from banks. We predict that when monetary policy tightens there will be a reduction in bank lending relative to trade credit. This is confirmed with an empirical investigation of 16,000 UK manufacturing firms.     

Market concentration, macroeconomic uncertainty and monetary policy

This paper studies the effect of market structure and macroeconomic uncertainty on the transmission of monetary policy. We motivate our analysis with a simple model which predicts that: (1) investment and production in more concentrated sectors are more affected by demand shocks and (2) high uncertainty makes investment and production more sensitive to demand shocks. The empirical analysis estimates the effect of monetary shocks on sectoral output for different sectors in the US using a structural vector autoregressive (VAR) approach. The results are generally consistent with the theoretical predictions.     

Policy mix and debt sustainability: evidence from fiscal policy rules

This paper characterizes rules-based fiscal policy setting for G-3 and large EMS countries. We set up a simple fiscal policy rule and then infer on the policymakers’ reaction coefficients by testing with GMM. Our results qualify existing evidence on systematic fiscal policy in two respects. First, fiscal policy usually stabilizes public debt; and there is indeed substantial interaction between fiscal and monetary policies via the policy mix or the debt channel. Second, sustainability is achieved with a “stop–go” cycle of consolidation. Unless debt ratios are high, consolidation does not come at the cost of less cyclical stabilization.     

China’s monetary policy: Quantity versus price rules

Two monetary policy rules, the money supply (quantity) rule and interest rate (price) rule, are explored for China in a dynamic stochastic general equilibrium model. The empirical results seem to indicate that the price rule is likely to be more effective in managing the macroeconomy than the quantity rule, favoring the government’s intention of liberalizing interest rates and making a more active use of the price instrument. Moreover, the economy would have experienced less fluctuations had interest rate responded more aggressively to inflation.     

Rule-of-thumb behaviour and monetary policy

We investigate the implications of rule-of-thumb behaviour by consumers or price setters for optimal monetary policy and simple interest rate rules. This behaviour leads to endogenous persistence in output and inflation and alters the policymaker's welfare objective. Our main finding is that highly inertial policy is optimal regardless of what fraction of agents occasionally follow a rule of thumb. We also find that a first-difference version of Taylor's (Carnegie-Rochester Conf. Ser. Public Policy 39 (1993) 195-214) rule generally has desirable properties. By contrast, the coefficients in other optimised simple rules tend to be extremely sensitive with respect to the fraction of rule-of-thumb behaviour.     

Quantitative easing tilts the balance between monetary and macroprudential policy

Quantitative easing by central banks has stimulated risk-taking in financial markets and contributed to a liquidity-driven boom in asset prices. It puts the relation between monetary policy and financial stability into a new perspective. We show by a regression analysis for a panel of 11 advanced economies that an asset price bust has adverse effects on inflation. The effect of stock prices and corporate bond rates on inflation is significant, also if we control for developments in credit. This insight implies that in conducting and implementing quantitative easing, central banks should closely monitor and take into account asset bubbles.     

Assessing the efficacy of borrower-based macroprudential policy using an integrated micro-macro model for European households

We develop an integrated micro-macro model framework that is based on household survey data for a subset of the EU countries that the Household Finance and Consumption Survey (HFCS) contains. We use the model for the purpose of assessing the efficacy of borrower-based macroprudential instruments, namely loan-to-value (LTV) ratio and debt service to income (DSTI) ratio caps, and illustrate its outcome for four European countries. The simulation results from the model can be attached to bank balance sheets and their risk parameters to derive the impact of the policy measures on their capital position. The model framework also allows quantifying the macroeconomic feedback effects that would result from the policy-induced reduction of demand for mortgage loans. An assessment as to the comparative efficacy of LTV- versus DSTI-based policy suggests that DSTI caps may be more effective in containing household risk.     

Optimal monetary policy in the presence of food price subsidies

Food price subsidies are a prevalent means by which fiscal authorities may counteract food price volatility in middle-income countries (MIC). We develop a DSGE model for a MIC that captures this key channel of a policy induced price smoothing mechanism that is different to, yet in parallel with, the classic Calvo price stickiness approach, which can have consequential effects for monetary policy. We then use the model to address how the joint fiscal and monetary policy responds to an increase in inflation driven by a food price shock can affect welfare. We show that, in the presence of credit constrained households and households with a significant share of food expenditures, a coordinated reaction of fiscal and monetary policies via subsidized price targeting can improve aggregate welfare. Subsidies smooth prices and consumption, especially for credit constrained households, which can consequently result in an interest rate reaction less intensely with subsidized price targeting compared with headline price targeting.     

Optimal simple rules for the conduct of monetary and fiscal policy

Stabilization policy involves joint monetary and fiscal rules. We develop a model enabling us to characterize systematic simple monetary and fiscal policy over the business cycle. We principally focus on the following question. What are the key properties of the joint simple rule governing the conduct of systematic stabilization policy? We find that conducting stabilization policy incorporates not only a set of monetary policy choices governed by the so-called ‘Taylor principle’ but also fiscal policy that gives considerable force to automatic stabilizers. Recent US and UK monetary and fiscal choices seem broadly consistent with this model. This result is found to be robust to a number of alternate modeling strategies.     

Euler equations and monetary policy

Euler equations are the key link between monetary policy and the real economy in NK models. Under separable preferences, they fail to match interest rates. Non-separability between leisure and consumption significantly improves their fit and reliability for studying monetary policy.     

Jointly optimal monetary and fiscal policy rules under liquidity constraints

We study the welfare properties of an economy where both monetary and fiscal policies follow simple rules, and where a subset of agents is liquidity constrained. The welfare benefits of optimizing the fiscal rule are far larger than those of optimizing the monetary rule. The optimized fiscal rule implements strong automatic stabilizers that primarily stabilize the income of liquidity-constrained agents, rather than output. Transfers targeted to liquidity-constrained agents are the preferred fiscal instrument. The optimized monetary rule exhibits super-inertia and a weak inflation response. Optimized simple rules perform as well as the optimal policy under the timeless perspective.     

The evolution of monetary policy effectiveness under macroeconomic instability

This paper studies the evolution of the monetary policy transmission mechanisms in the US following the Great Recession. The implementation of a modified Dynamic Factor Model enables the identification of two different structural scenarios based on the information contained in a large dataset of 110 variables. Impulse Response Functions to an increase of official interest rate for this large dataset are estimated for each structural context. Three techniques are combined to deal with the dimensionality problems which emerge from an estimation procedure of this magnitude: (i) factor decomposition, (ii) an identification strategy independent of the number of variables included in the dataset and (iii) a blockwise optimization algorithm for the correct selection of the Bayesian priors. Results show the presence of a structural break in 2008 and the higher responsiveness of the economy to monetary policy after that date.     

Identifying monetary policy shocks with changes in open market operations

In this paper, we reexamine the effects of monetary policy shocks by exploiting the information contained in open market operations. A sticky price model is developed where money is the counterpart of securities deposited at the central bank. The model's solution reveals that a rise in central bank holdings of open market securities can be interpreted as a monetary expansion. Estimates of vector autoregressions for US data are further provided showing that reactions to an unanticipated rise in open market securities are consistent with common priors about a monetary expansion, i.e., a decline in the federal funds rate, a rise in output, and inertia in price responses. Compared to federal funds rate shocks, prices do not exhibit a puzzling behavior and a larger fraction of the GDP forecast error variance can be attributed to open market shocks. However, the explanatory power of the latter has decreased since federal funds rate targets have been announced.     

Asymmetric monetary policy rules in Australia

In this study, the hypothesis that the Reserve Bank of Australia (RBA) implements an asymmetric monetary policy rule is tested. We estimate both linear and asymmetric monetary policy reaction functions for the period before inflation targeting was adopted, for the period when inflation targeting was explicitly adopted and for the full sample period. The results of the linear monetary policy rules are consistent with the estimates reported from other studies that estimate linear monetary policy rules for Australia. On the other hand, the results of estimating the asymmetric monetary policy rules for the pre-inflation targeting period shows that the RBA had reacted symmetrically, suggesting that it had acted with the same aggressiveness towards both inflation and output gaps of the same magnitude, over both phases of the business cycle. However, for the inflation targeting period, the results show that the RBA had reacted asymmetrically in its policy response to the inflation gap, output gap or both. A similar result is found for the full sample period. This asymmetric response supports the view that a non-linear monetary policy rule emanated from asymmetric preferences, rather than from the existence of a non-linear Phillips curve.     

Nominal debt as a burden on monetary policy

We characterize the optimal sequential choice of monetary policy in economies with either nominal or indexed debt. In a model where nominal debt is the only source of time inconsistency, the Markov-perfect equilibrium policy implies the progressive depletion of the outstanding stock of debt, until the time inconsistency disappears. There is a resulting welfare loss if debt is nominal rather than indexed. We also analyze the case where monetary policy is time inconsistent even when debt is indexed. In this case, with nominal debt, the sequential optimal policy converges to a time-consistent steady state with positive—or negative—debt, depending on the value of the intertemporal elasticity of substitution. Welfare can be higher if debt is nominal rather than indexed and the level of debt is not too high.