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1.
This paper evaluates the inertial inflation hypothesis for Brazil. The hypothesis posits that indexation created a feedback mechanism such that one-time supply shocks were fully transmitted into permanent changes in inflation. A theoretical model is used to show that this outcome is based on the assumption of perfect price flexibility. However, with price stickiness indexation does not produce inertial inflation. The degree of inertia is then compared for two periods: one without indexation (1945–1963), and one with indexation (1969–1985). Finally, vector-autoregressive representations are estimated for the latter period, allowing for price stickiness. The empirical results do not support the hypothesis.  相似文献   

2.
Uncertainty is an obstacle for commitments under cap and trade schemes for emission permits. We assess how well intensity targets, where each country’s permit allocation is indexed to its future realized GDP, can cope with uncertainties in international greenhouse emissions trading. We present some empirical foundations for intensity targets and derive a simple rule for the optimal degree of indexation to GDP. Using an 18-region simulation model of a cooperative, global cap-and-trade treaty in 2020 under multiple uncertainties and endogenous commitments, we show that optimal intensity targets could reduce the cost of uncertainty and achieve significant increases in global abatement. The optimal degree of indexation to GDP would vary greatly between countries, including super-indexation in some advanced countries, and partial indexation for most developing countries. Standard intensity targets (with one-to-one indexation) would also improve the overall outcome, but to a lesser degree and not in all individual cases. Although target indexation is no magic wand for a future global climate treaty, gains from reduced cost uncertainty and the potential for more stringent environmental commitments could justify the increased complexity and other potential downsides of intensity targets.   相似文献   

3.
Variables suggested by theoretical studies of indexation are considered with a view to examining their utility in the context of the decision to index (incidence) and the desired degree of indexation when escalator clauses are put into effect (intensity). The Tobit model, which can address both of these issues, suggests that most of the effects of explanatory variables on the regressand occur by modifying the incidence of indexation, not its intensity. However, the Tobit model is itself rejected in favour of separate Probit and Truncated Regression investigations of incidence and intensity, respectively. The results obtained indicate that the standard list of explanatory variables, which one thinks of in the context of the theoretical literature as dealing primarily with intensity, perform well in explaining incidence but very poorly in accounting for the non-limit observations. The latter are influenced by bargaining power proxies such as the unemployment rate and union density; a very clear trade-off between indexed and non-contingent wage adjustment can also be discerned. These results call for more theoretical attention to the distinction between indexation incidence and its intensity.  相似文献   

4.
A variety of wage indexation schemes are analyzed in the context of a simple dynamic disequilibrium macroeconomic model. These indexation schemes include rigid money wages (zero indexation), rigid real wages (full indexation), and intermediate cases (partial indexation). In a situation of unemployment, aggregate demand increases produce the most desirable results under rigid money wages. In a situation of excess demand for labor, aggregate demand increases produce the least desirable effects under rigid money wages. Mixed indexation schemes, in which money or real wages are rigid downward, are also examined as are the effects of stop-go policies.  相似文献   

5.
This paper extends the literature on indexation externalities by analyzing equilibrium and efficient indexation in a unionized economy characterized by a monopolistically competitive goods market. The assumption that union objectives relate to both employment and the real wage implies that union indexation decisions are associated with a negative externality and, as a consequence, the equilibrium degree of indexation is inefficiently high. This feature is characteristic of both passive and activist policy environments.  相似文献   

6.
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.  相似文献   

7.
In Australia the practice of partially indexing wages has become an art form. While open economy macroeconomics has been extended by various authors to the indexed wage case, none highlights the distinctive effects of partial indexation. This paper examines short-and long-run consequences of partial indexation. The standard conclusions that partial indexation is conducive to growth and that fiscal policy with partial indexation is expansionary are seriously questioned  相似文献   

8.
Balancing the government budget in an aging economy may require adjusting gradually pension benefits. Such policy change can take two forms: adjusting the accrual rate (the rate at which individuals built-up pension entitlements while working) or the indexation rate (the rate a which accrued entitlements are linked to nominal wage growth). We compare the consequences of such gradual policies across cohorts. We identify a fundamental generational trade-off between democracy and equality. In particular, we show that for Belgium, 80% of the population alive at the time of the reform prefers the accrual to the indexation reform, with the implication that the youngest half of the population would bear 85% of the total adjustment cost. The indexation reform provides more generational equality because the phasing in over time has larger base and thus benefit cut can be smaller per capita. We then consider other reforms improving the generational equality, showing that all those reforms fail to gain majority support. Finally, considering labor incentives, we show that the indexation reform is also more efficient than the accrual reform. Efficiency meets generational equality.  相似文献   

9.
This paper shows how economic interdependence affects the indexation decisions of atomistic wage setters in an environment in which monetary authorities do not observe stochastic disturbances before making their policy choices. If stochastic disturbances are common across countries, interdependence has no effect on equilibrium indexation choices in identical countries. However, if disturbances are country specific, numerical simulations show that interdependence is likely to reduce equilibrium indexation choices relative to a small open economy. We also show that indexation choices may be either strategic complements or strategic substitutes, but that strategic complementarity becomes more likely as the degree of interdependence rises.  相似文献   

10.
The paper develops a simple analytical framework in which the shortrun affects of wage indexation on the dynamic stability of inflation can be analyzed. It consists of a unlonized labor market faced by a competitive demand. Without indexation, the wage contract is based upon the union's prediction of the price level during the period of the contract. With indexation, the same objective is achieved by contracting only once at some initial period, subject to the stipulation that the nominal wage is linked to the price level. The main result is that when the demand for money is sensitive to changes in the expected rate of inflation, nominal variables like prices and wages are more likely to yield an unstable dynamic response with wage indexation, thus endangering the monetary system.  相似文献   

11.
This note studies the optimal degree of wage indexation in the presence of real shocks. Contrary to what is indicated in the literature, it is demonstrated that the optimal degree of indexation is not limited to (0;1) but may take any value in (-∞;∞).  相似文献   

12.
指数型基金跟踪误差的实证分析   总被引:8,自引:0,他引:8  
指数型基金是指采用指数化方式构建投资组合的基金,它与标的指数的选择密切相关.指数基金的构建有三大要素:标的指数、样本证券、权重分配,其目的是与标的指数之间的跟踪误差尽量小.虽然流动性、噪音、处置效应等均会影响指数基金的跟踪误差,但是,在一个较高有效性的市场中,指数型基金与标的指数间的跟踪误差要比新兴市场的小,这主要是因为该市场的流动性较好,成份股的选择有较大的余地.而在中国这样一个"新兴 转轨"市场中,指数基金往往会因为标的指数成份股数量不同而产生很大的差异,标的指数成份股越多,相对应指数基金的跟踪误差就越大;复制型基金完全复制策略下的跟踪误差要比增强型指数基金非完全复制策略下的跟踪误差要小;大额申购与赎回对指数基金跟踪误差产生明显影响.因此,指数型基金投资组合的构建应坚持被动投资,力避主动投资.  相似文献   

13.
This article sets up a two-goods model with wage indexation and migrants. A dual labor market is introduced where the domestic workers receive an indexed wage while migrants receive a market-determined wage. The traded sector may be assumed to be unionized while the non-traded goods sector is non-unionized giving rise to flexible wages. This provides an example of segmentation and wage indexation. The wage indexation creates unemployment in the traded sector and the segmentation allows this unemployment to persist. The main results obtained are: sector-specific migration of labor may raise domestic welfare, while with capital accumulation such migration necessarily raises the relative price of the non-traded goods, leading to structural adjustment.  相似文献   

14.
This note analyzes wage indexation from a macroeconomic viewpoint. Its purpose is to examine when wage indexation should be partial in the presence of real shocks, and it shows how the conditions for this to be the case depend on the aggregate production function, the income velocity of money, and the labor supply.  相似文献   

15.
The observed 2% long run inflation target in most developed industrial nations is in variance with the zero or negative optimal inflation rates predicted by prominent monetary theories. Using a calibrated simple New-Keynesian model with endogenous growth and nominal rigidity, we compare two price setting environments of Calvo (1983) and Rotemberg (1982). In our growth model, the steady state welfare maximizing inflation takes into account the growth effect as well as the price distortionary effects of inflation. The long-run welfare maximizing trend inflation could be positive in economies with nominal rigidity in the form of partial inflation indexation and price stickiness. A higher degree of inflation indexation lowers the steady state price distortion in the Calvo model and steady state price adjustment cost in Rotemberg model and raises the long run optimal inflation. Since the productive inefficiency caused by partial inflation indexation is higher in Calvo economy compared to Rotemberg, the long run optimal trend inflation is higher in Rotemberg than in Calvo. In both models, a two percent long run inflation target is attainable for a reasonable degree of inflation indexation.  相似文献   

16.
Distortionary effects of inflation on relative prices are the main argument for inflation stabilization in macro models with sticky prices. Under indexation of non-optimized prices, those models imply a nonlinear and dynamic impact of inflation on the cross-sectional price dispersion (relative price or inflation variability, RPV). Using US sectoral price data, we estimate such a relationship between inflation and RPV, also taking into account the endogeneity of inflation by using two- and three-stage least-squares and GMM techniques, which turns out to be relevant. We find an effect of (expected) inflation on RPV, and our results indicate that average (??trend??) inflation is important for the RPV?Cinflation relationship. Lagged inflation matters for indexation in the CPI data, but is not important empirically in the PPI data.  相似文献   

17.
This paper analyzes the optimal frequency of wage indexation. It demonstrates that a change in the expected value of money does not affect the optimal frequency, but that an increase in the riskiness of the value of money leads to an increase in the optimal frequency. An increase in the worker's risk aversion also leads to an increase in the optimal frequency, while an increase in the cost of indexation leads to a decrease in the optimal frequency.  相似文献   

18.
General equilibrium models are used to study the resource allocative and income implications for the Ivory Coast and Kenya of indexation of agricultural commodity prices. Two indexation methods are investigated, (i) buffer stock transactions, and (ii) export quota entitlements. The results suggest that there are efficiency losses associated with the buffer stock option which reduce the GDP gains below that indicated by the pure terms of trade gains. Efficiency gains associated with the export quota method however result in GDP increases above those indicated by the pure terms of trade gains.  相似文献   

19.
Over the eighteen-month period ending June 1986, the Australian economy experienced two major shocks: a nominal devaluation of the $A of some 28 per cent and a terms of trade decline of some 16 per cent. The effects of these influences are examined using the ORANI model of the Australian economy. The effects of the devaluation on selected macroeconomic variables and key sectoral variables are presented for various degrees of wage indexation. Effects on quota rents are calculated and compared with actual outcomes. The terms of trade decline has an adverse impact on the balance of trade and in order to offset this impact while maintaining aggregate employment demand the model calculates that both real wages and real absorption would need to be around 4 per cent less than the values they would otherwise take.  相似文献   

20.
Frequent changes in American tax laws over the last 30 years have led to uncertainty regarding the marginal tax rate on labour income. Using a multisector framework, this paper considers the implications of the tax rate uncertainty for wage flexibility. The Fiscal Authority sets the marginal wage tax rate, and is assumed to be the leader in a Stackelberg game. Wage setters in this game determine the degree of optimal indexation and are assumed to be followers. Increases in tax rate uncertainty lead to greater nominal wage flexibility, and a decrease in optimal progressivity. Additionally, indexation to nominal shocks is complete even if the product market is monopolistically competitive.  相似文献   

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