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Sticky Prices or Sticky Wages? An Equivalence Result

Florin Bilbiie, Mathias Trabandt
Review of Economics and Statistics, forthcoming
Abstract

We show an equivalence result in the standard representative agent New Keynesian model after demand, wage markup and correlated price markup and TFP shocks: assuming sticky prices and flexible wages yields identical allocations for GDP, consumption, labor, inflation and interest rates to the opposite case- flexible prices and sticky wages. This equivalence result arises if the price and wage Phillips curves' slopes are identical and generalizes to any pair of price and wage Phillips curve slopes such that their sum and product are identical. Nevertheless, the cyclical implications for profits and wages are substantially different. We discuss how the equivalence breaks when these factor-distributional implications matter for aggregate allocations, e.g. in New Keynesian models with heterogeneous agents, endogenous firm entry, and non-constant returns to scale in production. Lastly, we point to an econometric identification problem raised by our equivalence result and discuss possible solutions thereof.

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A Congestion Theory of Unemployment Fluctuations

Yusuf Mercan, Benjamin Schoefer, Petr Sedláček
American Economic Journal: Macroeconomics, No. 1, 2024
Abstract
We propose a theory of unemployment fluctuations in which newhires and incumbentworkers are imperfect substitutes. Hence, attempts to hire away the unemployed during recessions diminish the marginal product of new hires, discouraging job creation. This single feature achieves a ten-fold increase in the volatility of hiring in an otherwise standard search model, produces a realistic Beveridge curve despite countercyclical separations, and explains 30–40% of U.S. unemployment fluctuations. Additionally, it explains the excess procyclicality of new hires’ wages, the cyclical labor wedge, countercyclical earnings losses from job displacement, and the limited steady-state effects of unemployment insurance. 
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AIECE General Report, Part 2, Spring 2023

Andrej Drygalla, Axel Lindner, Birgit Schultz
IWH Studies, No. 4, 2023
Abstract
The Halle Institute for Economic Research (IWH) is a member of AIECE (Association d'Instituts Europeens de Conjoncture Economique/Association of European Conjuncture Institutes), an association of independent European institutes involved in surveying economic conditions and developments, and in short-term macroeconomic forecasting. The main objective of the Association is to stimulate the exchanges between its members with a view to improve their insight into international economic developments. This ranges from the exchange of statistical or institutional information to discussions on economic policy Guidelines to common research activities. The AIECE organises between its members an exchange of view, of information and of literature on international economic developments, in particular in Europe. The Association provides the framework for joint activities of its members in areas of common interest. Its structure allows its members to develop common views on the future cyclical development. In order to meet these objectives the Association has half-yearly plenary meetings, centred around a general report on the European conjuncture prepared in turn by one of the members in cooperation with the other member institutes, but also with discussions of the working group reports and of special surveys prepared by member institutes. In Spring 2023, the report was written by the Halle Institute for Economic Research (IWH).
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AIECE General Report, Part 1, Spring 2023

Andrej Drygalla, Axel Lindner, Birgit Schultz
IWH Studies, No. 3, 2023
Abstract
The Halle Institute for Economic Research (IWH) is a member of AIECE (Association d'Instituts Europeens de Conjoncture Economique/Association of European Conjuncture Institutes), an association of independent European institutes involved in surveying economic conditions and developments, and in short-term macroeconomic forecasting. The main objective of the Association is to stimulate the exchanges between its members with a view to improve their insight into international economic developments. This ranges from the exchange of statistical or institutional information to discussions on economic policy Guidelines to common research activities. The AIECE organises between its members an exchange of view, of information and of literature on international economic developments, in particular in Europe. The Association provides the framework for joint activities of its members in areas of common interest. Its structure allows its members to develop common views on the future cyclical development. In order to meet these objectives the Association has half-yearly plenary meetings, centred around a general report on the European conjuncture prepared in turn by one of the members in cooperation with the other member institutes, but also with discussions of the working group reports and of special surveys prepared by member institutes. In Spring 2023, the report was written by the Halle Institute for Economic Research (IWH).
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Why is Unemployment so Countercyclical?

Lawrence J. Christiano, Martin S. Eichenbaum, Mathias Trabandt
Review of Economic Dynamics, July 2021
Abstract
We argue that wage inertia plays a pivotal role in allowing empirically plausible variants of the standard search and matching model to account for the large countercyclical response of unemployment to shocks.
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EFN Report Winter 2018/19: Economic Outlook for the Euro Area in 2019 and 2020

EFN Reports, No. 1, 2019
Abstract
• The cyclical upswing of the world economy comes to an end, since expansionary policies in the US are expected to peter out in 2019, and the protectionist course of the US government clouds the perspectives for world trade. • However, if a major trade conflict can be avoided, chances are good that world production growth will be close to the long-run average of a bit more than 3%, with trade expanding at a similar pace. • Slowing exports, in particular to China, can partly explain the setback, while domestic conditions still appear favourable: firms continued hiring, albeit by less than before, tight labour markets in many member countries have caused wages to rise more quickly, and house prices continue to increase markedly. • Since a trend to higher inflationary dynamics is still not detectable, the ECB is likely to either keep key interest rates unchanged in 2019 or raise them very carefully at the end of the year. • All in all, we expect the euro area growth rate to come down from 1.9% in 2018 to 1.5% in 2019 and 1.8% in 2020, and inflation to slightly slow down from 1.8% in 2018 to 1.6% in 2019 and 1.5% in 2020.
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EFN Report Summer 2018: Economic Outlook for the Euro Area in 2018 and 2019

EFN Reports, No. 3, 2018
Abstract
• In summer 2018 the cyclical upswing of the world economy is not over, but it appears to be fragmenting. While economic activity in the European Union has lost steam, the upswing in the US has gained pace, and growth in China appears to be robust. • Markets for commodities as well as for capital are at present strongly affected by political movements: oil prices are more than 50% higher than one year ago, as the US exit from the Iran nuclear deal puts the long run oil supply from Iran at risk, and the strongly expansionary US tax reform explains the rise in US long run interest rates. . • Uncertainties about the future international trade system cause firms to slow down or even reverse the globalization of value chains. As an early consequence, world trade in the second half of 2018 and in 2019 will expand at much slower rates than during 2017. • In the euro area growth slowed in the first quarter 2018, due to weaker investment activity in France and Italy and, more importantly, a fall in exports in all larger euro area economies except Spain. However, the drivers of the upswing such as low interest rates for credit and expanding real incomes will still be supportive in the near future, and fiscal policies will be slighly more expansionary. But a slowdown in world trade will dent export growth as well as corporate profits. All in all, we expect GDP growth in the euro area to go down from 2.4% in 2017 to 2.1% in 2018 and to 1.7% in 2019 – a forecast that will only be realized if damages to the international trade system are limited and if the European sovereign debt crisis does not come back. • While wage inflation has been slowly increasing during the past quarters to about 2%, a clear upwards trend of core consumer price inflation is still not detectable. The recent jump of the headline rate to 1.9% is due to higher oil prices. Our forecasts for 2018 and 2019 are close, although still below, 2%.
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Do Employers Have More Monopsony Power in Slack Labor Markets?

Boris Hirsch, Elke J. Jahn, Claus Schnabel
ILR Review, No. 3, 2018
Abstract
This article confronts monopsony theory’s predictions regarding workers’ wages with observed wage patterns over the business cycle. Using German administrative data for the years 1985 to 2010 and an estimation framework based on duration models, the authors construct a time series of the labor supply elasticity to the firm and estimate its relationship to the unemployment rate. They find that firms possess more monopsony power during economic downturns. Half of this cyclicality stems from workers’ job separations being less wage driven when unemployment rises, and the other half mirrors that firms find it relatively easier to poach workers. Results show that the cyclicality is more pronounced in tight labor markets with low unemployment, and that the findings are robust to controlling for time-invariant unobserved worker or plant heterogeneity. The authors further document that cyclical changes in workers’ entry wages are of similar magnitude as those predicted under pure monopsonistic wage setting.
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EFN Report Spring 2018: Economic Outlook for the Euro Area in 2018 and 2019

EFN Reports, No. 2, 2018
Abstract
• The world economy is booming. The global upswing is investment-driven, and since investment goods usually have a large import content, it is no surprise that world trade has been buoyant during winter. The very expansionary US fiscal policy (tax reform and lifting of spending caps) could give an additional shortterm stimulus for the world economy. • However, we forecast world trade to slow down during 2018. The US administration’s announcement of high tariffs on steel and aluminium comes close to triggering a spiral into a broader trade conflict. Moreover, the globalization of value chains has been slowing down since the financial crisis due to the industrial upgrading in China and in other emerging economies that has declined processing trade. In addition, some types of manufacturing jobs have returned to source countries (reshoring) in response to technology innovation and lower labour costs differentials. • The euro area is in the middle of a broad based cyclical upswing. Higher exports and improved expectations have induced firms to invest more into equipment, as capacity utilization has been above average for some time now and is still increasing, and financing costs are very low. However, recent soft indicators, but also industrial production have been surprisingly downbeat, and there was some turbulence in financial markets, which suggests some caution. • The ECB will probably stop its asset purchase program at the end of 2018, but only later in 2019 start raising interest rates. Fiscal policy in the euro area is slightly expansionary this year, and a notable fiscal stimulus in France and in Germany is to be expected for 2019. • Overall, we forecast euro area GDP to expand by 2.2% in 2018 and by 1.6% in 2019. Accelerating wage dynamics will, together with higher price setting powers of firms and the recent increase in oil prices, cause consumer price inflation rising to nearly to 2% in 2019. Uncertainty, is however substantial, as a slight slowdown cannot be ruled out, which would also impact inflation dynamics.
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EFN Report Winter 2017/18: Economic Outlook for the Euro Area in 2018 and 2019

EFN Reports, No. 1, 2018
Abstract
With advanced economies likely to face over-utilization of economic capacities in 2018 for the first time since the Great Recession, companies will further expand their investment activities. Price and wage dynamics will pick up globally, triggered by the recent increase in energy prices. A major risk for the world economy pertains to financial markets: measures for risk tolareance and valuations for many types of assets have approached levels last reached ten years ago, on the eve of the financial crisis. A sudden readjustment of asset prices and risk premia could worsen financial conditions globally and seriously affect the global economy. The cyclical upswing of the euro area economy continues. The recovery, under way since summer 2013, transformed into an upswing in autumn 2016 when demand from outside the euro area increased quite abruptly; higher exports and improved expectations have contrinuted to induce firms to invest more into equipment. Wage dynamics in the euro area appear to increase, but only slowly. An annual growth rate for hourly wage costs of about 2% is still not enough to put upward pressure on prices, but this will change eventually as the cyclical upswing is likely to continue. Inflation will, according to our forecast, reach the ECB’s target of below but close to 2% in the second half of 2019. Conditions for further healthy growth in the euro area are in place, but employment dynamics might markedly lose momentum in some member countries in the second half of 2018, as the potential labour force is becoming more and more exhausted. Overall, we forecast euro area GDP to grow by 2.2% in 2018 and by 1.5% in 2019.
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