Wages are flexible aren't they? Evidence from monthly micro wage data

This paper assesses the degree of wage flexibility in Luxembourg using an administrative data set on individual base wages covering the entire economy over the period 2001-2006 with monthly frequency. We find that the wage flexibility at the discretion of the firm is rather low once we limit measurement error and remove wage changes due to institutional factors (indexation, changes in statutory minimum wage, age and marital status). The so adjusted frequency of wage change lies between 5% and 7%. On average, wages change less often than consumer prices. Less than one percent of (nominal) wages are cut both from month to month and from year to year. Due to automatic wage indexation, wages appear to be subject to substantial downward real wage rigidity. Finally, wage changes tend to be highly synchronised as they are concentrated around the events of wage indexation and the month of January. JEL Classification: J31wage flexibility, wage rigidity

Downward wage rigidity and automatic wage indexation: evidence from monthly micro wage data

This paper assesses the degree of downward wage rigidity in Luxembourg using an administrative monthly data set on individual wages covering the entire economy over the period from January 2001 to January 2007. After limiting for measurement error, which would otherwise bias downwards the estimates of wage rigidity, we conclude that nearly all workers in Luxembourg are potentially subject to downward real wage rigidity. Our results are robust to different procedures to adjust for measurement error and methods for estimation of downward wage rigidity. We report relatively small differences in the frequency of nominal wage cuts across occupational groups and sectors. In addition, the observed rigidity does not seem to be driven predominantly by the absence of negative shocks. We show that the real wage rigidity is related to the automatic wage indexation, while additional factors might be necessary to explain the high degree of downward wage rigidity. JEL Classification: J31downward wage rigidity, wage indexation

Monetary transmission: empirical evidence from Luxembourg firm-level data

This paper investigates the transmission of monetary policy in Luxembourg. It is the first empirical analysis conducted for Luxembourg firm-level data. The results indicate that the sales accelerator may be at work. A very robust result is the negative effect of the user cost of capital on firms' investment ratio. Changes in user cost are significantly affected by changes in the monetary policy indicator. In addition, firm specific balance sheet characteristics, such as the lagged cash stock to capital ratio influence the investment behaviour according to the broad credit channel theory. It is shown that young firms, in particular, are more sensitive to user cost changes, sales growth and the lagged cash to capital ratio.Investment, User Cost of Capital, Credit Channel, Panel Data

Regulated and services’ prices and inflation persistence

This paper analyses the degree of price rigidity and of inflation persistence across different product categories with particular focus on regulated prices and services for the individual EU15 countries, as well as for the EU15 and the euro area aggregates. We show that services and HICP sub-indices considered being subject to price regulation exhibit larger degrees of nominal price rigidities, with less frequent but larger price index changes as well as stronger asymmetries between price index increases and decreases. With regard to what extent services and regulated prices contribute to the degree of overall inflation persistence, we find that, for most of the EU15 countries as well as for the EU15 and the euro area aggregates, excluding services from the full HICP results in a reduction in the measured degree of inflation persistence; for regulated indices such an effect is also discernible, albeit to a lesser extent. JEL Classification: E31, C22, C23, C43Inflation persistence, price rigidity, regulated prices, services

Monetary transmission: empirical evidence from Luxembourg firm level data

This paper investigates the transmission of monetary policy using data from a panel of Luxembourg firms. The results indicate that the sales accelerator may be at work. A very robust result is the negative effect of the user cost of capital on firms' investment ratio. Changes in user costs are significantly affected by changes in the monetary policy indicator. In addition, firm specific balance sheet characteristics, such as the lagged cash stock to capital ratio influence the investment behaviour according to the broad credit channel theory. Using various sample splits, it is shown that young firms, in particular, are more sensitive to user cost changes, sales growth and the lagged cash to capital ratio. JEL Classification: D21, D92, E22, E52credit channel, Investment, panel data, user cost of capital

Consumer price behaviour in Luxembourg: evidence from micro CPI data

This paper uses micro-level price data and analyses the behaviour of consumer prices in Luxembourg. We find that the median duration of consumer prices is roughly 8 months. The median durations of energy and unprocessed food are about 1.5 and 5 months, while prices of services typically change fewer than once a year. For some product types, such as non-energy industrial goods and processed food, a relatively large share of the observed price changes is reverted afterwards. With the exception of services, individual prices do not show signs of downward rigidity. On average, price decreases are as large as price increases. Price changes are determined both by state- and time-dependent factors. Accumulated price and wage inflation, wage adjustment due to indexation, the cash changeover and a larger number of competitors increase the probability of a price change, while pricing at attractive pricing points and price regulation have the opposite effect. JEL Classification: E31, C23, C41consumer prices, price setting, rigidity, sales, wage indexation

Inflation persistence in Luxembourg: a comparison with EU15 countries at the disaggregate level

The aim of this paper is to analyse the degree of inflation persistence in Luxembourg using disaggregate price index data from the Harmonised Index of Consumer Prices. The degree of inflation persistence is then compared to estimates for the EU15 and for the euro area as well as for the individual member countries according to a unified approach. In order to assess the robustness of our estimates both a parametric and a non-parametric measure of inflation persistence is used. Overall, our results suggest a relatively low degree of inflation persistence in Luxembourg. For a large number of sub-indices we are not only able to reject the unit root hypothesis, but also we find a low degree of inflation persistence relative to other EU15 countries and relative to the EU15 and euro area aggregates. For Luxembourg as well as the other EU15 countries, our results suggest substantial heterogeneity in the degree of inflation persistence across sub-indices. We find some support for the presence of aggregation effects, both across indices and countries. Structural break tests for all EU15 countries suggest the presence of structural changes in the inflation process owing to the inception of the single monetary policy and/or to the modified treatment of sales.

New survey evidence on the pricing behaviour of Luxembourg firms

This paper analyses the pricing behaviour of Luxembourg firms based on survey evidence. Luxembourg firms typically have low market share, many competitors and longstanding customer relationships. Price discrimination is frequently applied. A majority of firms use price review rules that include elements of state dependency. The median firm reviews and changes prices twice a year. The results suggest an almost equal share of firms applying forwardlooking, backward-looking and rules of thumb behaviour. The adjustment speed is faster when cost goes up and demand goes down than in the opposite cases. The most relevant theories explaining price rigidity are implicit contracts, cost-based pricing and explicit contracts. Increases in labour and other costs are the most important factors leading to price increases; for price reductions it is price reductions by competitors followed by declining labour costs. JEL Classification: C21, C22, C14adjustment speed, price rigidity, price setting, survey data

How persistent is disaggregate inflation? An analysis across EU 15 countries and HICP sub-indices

This paper analyses the degree of inflation persistence in the EU15, the euro area and each of its member states using disaggregate price indices from the Harmonised Index of Consumer Prices. Our results reveal substantial heterogeneity across countries and indices. The overall results, based on both parametric and non-parametric persistence measures, suggest a very moderate degree of median and mean inflation persistence. For most price indices we are able to reject the unit root hypothesis, as well as the notion of disaggregate inflation exhibiting a high degree of persistence. Durable goods and services tend to be relatively less persistent than other indices. Aggregation effects, both across indices and countries, tend to be present. We find structural breaks both owing to the change in the monetary regime and to the modified treatment of sales in the official HICP series. The latter tends to reduce the measured degree of inflation persistence. JEL Classification: E31, C21, C22, C14Aggregation effect, Inflation persistence, Mean reversion, structural breaks