Learning, endogenous indexation and disinflation in the New-Keynesian Model

This paper introduces adaptive learning and endogenous indexation in the New-Keynesian Phillips curve and studies disinflation under inflation targeting policies. The analysis is motivated by the disinflation performance of many inflation-targeting countries, in particular the gradual Chilean disinflation with temporary annual targets. At the start of the disinflation episode price-setting firms’ expect inflation to be highly persistent and opt for backward-looking indexation. As the central bank acts to bring inflation under control, price-setting firms revise their estimates of the degree of persistence. Such adaptive learning lowers the cost of disinflation. This reduction can be exploited by a gradual approach to disinflation. Firms that choose the rate for indexation also re-assess the likelihood that announced inflation targets determine steady-state inflation and adjust indexation of contracts accordingly. A strategy of announcing and pursuing short-term targets for inflation is found to influence the likelihood that firms switch from backward-looking indexation to the central bank’s targets. As firms abandon backward-looking indexation the costs of disinflation decline further. We show that an inflation targeting strategy that employs temporary targets can benefit from lower disinflation costs due to the reduction in backward-looking indexation

Wage indexation and the monetary policy regime

We estimate a New Keynesian wage Phillips curve for a panel of 24 OECD countries and allow the degree of wage indexation to past inflation to vary according to structural characteristics. We find that the degree of wage indexation is significantly lower for countries with an inflation target. However, this effect vanishes when we control for the degree of goods market competition. By contrast, more goods market competition is consistently associated with lower wage indexation. This robust finding puts into question whether embedding a constant degree of wage indexation in standard DSGE models is truly structural

Indexing and Inflation

Much of the opposition to indexation as a means of adapting to on going inflation arises from the view that indexation is itself inflationary. This paper examines the basis for that view in a simple macroeconomic model in which budget deficits are in part financed through the printing of money. It is shown that all aspects of indexing -- wage indexation, bond indexation, and tax indexation -- tend to increase the impact on the price level of any inflationary shock. However, this association between indexation and inflation is in large part a consequence of the monetary and fiscal policies being followed by the government. Evidence from a cross-section of forty countries on the effects of indexation on the inflationary impact of the oil price shock of 1974 suggests that indexation did not in general increase the inflationary impact of the oil shock. However, the impact of the oil shock was significantly stronger in those countries that had adopted bond indexation.

Managing sovereign credit risk in bond portfolios

With the recent development of the European debt crisis, traditional index bond management has been severely called into question. We focus here on the risk issues raised by the classical market-capitalization weighting scheme. We propose an approach to properly measure sovereign credit risk in a fixed-income portfolio. For that, we assume that CDS spreads follow a SABR process and we derive a sovereign credit risk measure based on CDS spreads and duration of portfolio bonds. We then consider two alternative weighting methods which are fundamental indexation and risk-based indexation. Fundamental indexation is based on GDP indexation whereas risk-based indexation uses a risk budgeting approach based on our sovereign credit risk measure. We then compare all these methods in terms of risk, diversification and performance. We show that the risk budgeting approach is the most appropriate scheme to manage sovereign credit risk in bond portfolios and gives very appealing results with respect to active management of bond portfolios.sovereign credit risk, credit spread, convex risk measure, sabr model, CDS, bond indices, fundamental indexation, risk-based indexation, risk budgeting

Nominal Wage Flexibility, Wage Indexation and Monetary Union

Membership in a monetary union implies stronger incentives for nominal wage flexibility in the form of wage indexation and shorter contract length than nonmembership. For example, entry into a monetary union may cause a move from a non-indexation to an indexation equilibrium. But more wage flexibility is only an imperfect substitute for an own monetary policy. It is possible that an increase in wage flexibility is welfare-decreasing because of the accompanying rise in price variability. The interaction between wage setting and central bank behaviour may result in either multiple equilibria or a unique full-indexation equilibrium.nominal wage flexibility, wage indexation, monetary union, asymmetric shocks

Nominal Wage Flexibility, Wage Indexation and Monetary Union

Membership in a monetary union (EMU) is likely to imply stronger incentives for nominal wage flexibility in the form of wage indexation and shorter contract length than non-membership. For example, EMU entry may cause a move from a nonindexation to an indexation equilibrium. But more wage flexibility is only an imperfect substitute for an own monetary policy. It is possible that an increase in wage flexibility is welfare-decreasing, because of the accompanying rise in price variability. If indexation occurs outside the EMU, either multiple equilibria or full-indexation equilibria may occur.nominal wage flexibility; wage indexation; EMU; asymmetric shocks

Contract Duration and Indexation in a Period of Real and Nominal Uncertainty

A sample of 11885 wage agreements, reached in the Canadian unionized sector during 1976-2000, a period of high as well as exceptionally low inflation and substantial fluctuations in nominal and real uncertainty, is used to study the determinants of key provisions of contracts such as their duration and indexation clauses. Econometric techniques, which account for the interaction between duration and indexation, as well as the latent nature of the elasticity of indexation are used. Results obtained suggest that expected inflation, nominal and real uncertainty account for most of the secular and cyclical changes in contract provisions.contract duration, indexation, nominal, real uncertainty

Does Indexation Bias the Estimated Frequency of Price Adjustment?

We assess the implications of price indexation for estimated frequency of price adjustment in sticky price models of business cycles. These models predominantly assume that non-reoptimized prices are indexed to lagged or average inflation. The assumption of price indexation adds tractability although it is not likely reflective of the price practices of firms at the micro level. Under indexation firms have less incentive to adjust their prices, which implies downward bias in the estimated frequency of price changes. To evaluate the bias, we generate data with Calvo-type models without indexation. The artificial data are then used to estimate the frequency of price changes with indexation. Considering different assumptions about the degree of price rigidity and the level of trend inflation in the data-generating model, we find that the estimated indexation bias can be substantial, ranging up to 12 quarters in some cases.Inflation and prices; Economic models; Econometric and statistical methods

Are Indexed Bonds a Remedy for Sudden Stops?

Recent policy proposals call for setting up a benchmark indexed bond market to prevent "Sudden Stops". This paper analyzes the macroeconomic implications of these bonds using a general equilibrium model of a small open economy with financial frictions. In the absence of indexed bonds, negative shocks to productivity or to the terms of trade trigger Sudden Stops through a debt-deflation mechanism. This paper establishes that whether indexed bonds can help to prevent Sudden Stops depends on the "degree of indexation", or the percentage of the shock reflected in the return. Quantitative analysis calibrated to a typical emerging economy suggests that indexation can improve macroeconomic conditions only if the level of indexation is less than a critical value due to the imperfect nature of the hedge provided by these bonds. When indexation is higher than this critical value (as with full-indexation), "natural debt limits" become tighter, leading to higher precautionary savings. The increase in the volatility of the trade balance that accompanies the introduction of indexed bonds outweighs the improvement in the covariance of the trade balance with income, increasing consumption volatility. Additionally, we find that at high levels of indexation, the borrowing constraint can become suddenly binding following a positive shock, triggering a debt-deflation.Indexed Bonds, Degree of Indexation

Inflation persistence, Price Indexation and Optimal Simple Interest Rate Rules

We study the properties of the optimal nominal interest rate policy under different levels of price indexation. In our model indexation regulates the sources of inflation persistence. When indexation is zero, the inflation gap is purely forward- looking and inflation persistence depends only on the level of trend inflation, while full indexation makes the inflation gap persistent and it eliminates the effects of trend inflation. We show that in the former case the optimal policy is inertial and targets inflation stability while in the latter the optimal policy has no inertia and targets the real interest rate. We compare our results with empirical estimates of the FED's policy in the post-WWII era.Inflation Persistence, Taylor Rule, New Keynesian model, Indexation