Evaluating the German (New Keynesian) Phillips Curve
Rolf Scheufele
North American Journal of Economics and Finance,
2010
Abstract
This paper evaluates the New Keynesian Phillips curve (NKPC) and its hybrid variant within a limited information framework for Germany. The main interest resides in the average frequency of price re-optimization by firms. We use the labor income share as the driving variable and consider a source of real rigidity by allowing for a fixed firm-specific capital stock. A GMM estimation strategy is employed as well as an identification robust method based on the Anderson–Rubin statistic. We find that the German Phillips curve is purely forward-looking. Moreover, our point estimates are consistent with the view that firms re-optimize prices every 2–3 quarters. These estimates seem plausible from an economic point of view. But the uncertainties around these estimates are very large and also consistent with perfect nominal price rigidity, where firms never re-optimize prices. This analysis also offers some explanation as to why previous results for the German NKPC based on GMM differ considerably. First, standard GMM results are very sensitive to the way in which orthogonality conditions are formulated. Further, model mis-specifications may be left undetected by conventional J tests. This analysis points out the need for identification robust methods to get reliable estimates for the NKPC.
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Change in East German Firm Level Export Determinants
Birgit Schultz
Wirtschaft im Wandel,
No. 3,
2010
Abstract
Exports have a ‘motor of growth’ status for the German economy. They both save and increase employment and provide wealth. However, only a minority of East German manufacturing and construction firms realize sales in foreign countries. The paper analyses for two points in time the influences of firm level export factors on the level of export activities of East German firms, and how the strength of the influence has changed over time. We found export sales especially in firms who are integrated in international corporate groups and are highly specialized. Economies of scale (firm size) increase the export share. Additionally, export sales also depend on wages. These findings are in line with current analysis in the field of international trade. While the above factors are found to be stable over time some others have changed in importance. In 2000 the industrial sector and the unit labor costs were important factors in determining export activities. In 2008 these factors have lost importance. Instead, human capital and investments have achieved significance.
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The Manufacturing Sector in East Germany on a Path from De-industrialization to Re-industrialization: Are there Economically Sustainable Structures?
Gerhard Heimpold
Wirtschaft im Wandel,
20 Jahre Deutsche Einheit - Teil 1 -
2009
Abstract
The contribution comprises an analysis how the manufacturing sector in East Germany has developed in the post-transition period after 1990. A set of economic performance indicators is used. The analysis shows a considerable growth of gross value added and productivity. However, the growth of productivity occurred at the expense of employment. On average, in 2008, the East German manufacturing sector reached 4/5th of the productivity level of the West German level. As far as the endowment with growth determinants is concerned, the manufacturing industry in the New German Länder has undertaken considerable efforts to modernize its fixed capital stock. The endowment with human capital measured by the proportion of employees possessing a university degree is as high as in the western part of Germany. However, the investigation reveals a number of deficits, too. Data on Research and Development (R&D) expenditures and R&D staff in the manufacturing sector reveal, on average, lower R&D activities in the East German manufacturing sector. This is resulting from specific structures of the East German manufacturing sector: dominance of small firms, lack of large firms possessing headquarters and conducting own R&D. Complementary, the share of technology-driven industries is lower, and the proportion of labor intensive industries is larger in comparison with the West German manufacturing sector. In addition, an investigation of functional structures of employment reveals a proportion of employment in production functions which is above the West German average, whereas the opposite is the case with the proportion of employment in service functions. For further strengthening the East German manufacturing sector, structural change toward technology-intensive and human capital-intensive economic activities has to be continued.
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Low Skill but High Volatility?
Claudia M. Buch
CESifo Working Paper No. 2665,
2009
Abstract
Globalization may impose a double-burden on low-skilled workers. On the one hand, the relative supply of low-skilled labor increases. This suppresses wages of low-skilled workers and/or increases their unemployment rates. On the other hand, low-skilled workers typically face more limited access to financial markets than high-skilled workers. This limits their ability to smooth shocks to income intertemporally and to share risks across borders. Using cross-country, industry-level data for the years 1970 - 2004, we document how the volatility of hours worked and of wages of workers at different skill levels has changed over time. We develop a stylized theoretical model that is consistent with the empirical evidence, and we test the predictions of the model. Our results show that greater financial globalization and development increases the volatility of employment, and this effect is strongest for low-skilled workers. A higher share of low-skilled employment has a dampening impact.
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Trade's Impact on the Labor Share: Evidence from German and Italian Regions
Claudia M. Buch
IAW Discussion Paper No. 46,
2008
Abstract
Has the labor share declined? And what is the impact of international trade? These
questions are not only relevant in an international context they also matter for
understanding the regional distribution of incomes in a given country. In this
paper, we study two regions with trade exposures that differ from the rest of the
country, and which display distinct changes in the labor share. East German and
Southern Italian regions have a degree of international openness which is below
the countries’ averages. At the same time, there has been a more pronounced
decline in the labor share in East Germany than in West Germany. In Southern
Italy, the labor share has increased in recent years. We show that increased trade
openness is not the main culprit behind changing labor shares.
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Evaluating the German (New Keynesian) Phillips Curve
Rolf Scheufele
IWH Discussion Papers,
No. 10,
2008
Abstract
This paper evaluates the New Keynesian Phillips Curve (NKPC) and its hybrid
variant within a limited information framework for Germany. The main interest rests on the average frequency of price re-optimization of firms. We use the labor income share as the driving variable and consider a source of real rigidity by allowing for a fixed firm-specific capital stock. A GMM estimation strategy is employed as well as an identification robust method that is based upon the Anderson-Rubin statistic. We find out that the German Phillips Curve is purely forward looking. Moreover, our point estimates are consistent with the view that firms re-optimize prices every two to three quarters. While these estimates seem plausible from an economic point of view, the uncertainties around these estimates are very large and also consistent with perfect nominal price rigidity where firms never re-optimize prices. This analysis also offers some explanations why previous results for the German NKPC based on GMM differ considerably. First, standard GMM results are very sensitive to the way how orthogonality conditions are formulated. Additionally, model misspecifications may be left undetected by conventional J tests. Taken together, this analysis points out
the need for identification robust methods to get reliable estimates for the NKPC.
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Mit 55 zum alten Eisen? Eine Analyse des Alterseinflusses auf die Produktivität anhand des LIAB
Lutz Schneider
Zeitschrift für Arbeitsmarktforschung,
No. 1,
2007
Abstract
"Against the background of an aging labor force in Germany and insufficient job opportunities for older people, the paper raises the question as to how age affects the productivity of workers. Due to opposite developments of certain human abilities across the life span, gerontological research supports the hypothesis of an inverted u-shaped age-productivity profile. Middle aged workers are supposed to achieve the highest productivity level, whereas both young and old employees should show lower productivity levels. The analysis is carried out on the basis of a new linked employer-employee dataset of the Institute for Employment Research (LIAB). Within a production function framework it is tested econometrically whether the age composition of a firm's workforce affects its productivity and if so in what way. The regressions are carried out separately for the manufacturing and the service sectors. The cross-section estimations of the year 2003 reveal a positive correlation between firm productivity and the share of middle-aged employees (35-44 years old). Furthermore, in the manufacturing sector, a negative correlation between productivity and the proportion of the youngest age group (15-24 years old) can be seen. Thus the results provide evidence of an inverted u-shaped age-productivity profile in this sector. In the service sector, in contrast, the share of the youngest workers seems to increase productivity compared to the reference group of the 55-64 year-old employees.
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Too old to work? The impact of age on productivity
Lutz Schneider
Wirtschaft im Wandel,
No. 11,
2006
Abstract
Due to the public debate on the raising legal re-tirement age in Germany labor market research has recently focused on an explanation of the low labor market participation rate of elders. In the economic discussion the low participation is pri-marily explained by a supposed imbalance of la-bor costs and returns for old workers. Whereas wages rise with increasing age, the individual productivity seems to fall beyond a certain age. Gerontological research supports this view, since it documents an age-driven decline of physical and certain mental abilities. The study empirically evaluates the thesis of a diminishing individual productivity at higher ages. The analysis is done on the basis of a new dataset for German firms of the manufacturing sector. Using these data the effect of the employee’s age on a firm’s productiv-ity is estimated and conclusions on the job per-formance of workers at different ages are drawn. The performed cross-section-regressions of the years 2003 and 2000 indicate an inverted u-shaped age-productivity-profile. The 25-44 year olds turn out to be the most productive, the share of the over 44 year old workers seems to dampen productivity. However the 15-24 age group makes the lowest productivity contribution. Moreover a positive effect of firm-related experience can be found. Due to elders’ higher stock of firm specific human capital this might at least partly compen-sate the unfavorable effects of aging.
From a political perspective these findings sup-port the view, that an increasing legal retirement age will not automatically lead to a remarkable extension of the labor demand for older people. In addition to legal aspects the wage schemes and the actual productivity profiles in higher age have to be linked more closely together.
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Productivity gap of East German industry: A summarizing evaluation
Joachim Ragnitz
Wirtschaft im Wandel,
No. 7,
2001
Abstract
Ten years after German unification labor productivity in the New Laender reaches only 70 per cent of West German levels. Further, in the second half of the 1990ies, convergence did not continue. Because productivity can be regarded as a key for wages, for competitiveness of firms and for future transfer payments, the reasons for low productivity in East Germany are of major importance. In this article, it is argued that the existing productivity gap reflects mainly structural differences between East and West Germany, that is the high share of small firms and the predominance of sectors with low value added per worker. Additionally, difficulties on product markets leading to insufficient selling prices are responsible for the comparative low productivity of East German firms. Differences in capital intensity or in human capital, however, do explain only a small part of the productivity gap.
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