Bottom-up or Direct? Forecasting German GDP in a Data-rich Environment
Katja Drechsel, Rolf Scheufele
Abstract
This paper presents a method to conduct early estimates of GDP growth in Germany. We employ MIDAS regressions to circumvent the mixed frequency problem and use pooling techniques to summarize efficiently the information content of the various indicators. More specifically, we investigate whether it is better to disaggregate GDP (either via total value added of each sector or by the expenditure side) or whether a direct approach is more appropriate when it comes to forecasting GDP growth. Our approach combines a large set of monthly and quarterly coincident and leading indicators and takes into account the respective publication delay. In a simulated out-of-sample experiment we evaluate the different modelling strategies conditional on the given state of information and depending on the model averaging technique. The proposed approach is computationally simple and can be easily implemented as a nowcasting tool. Finally, this method also allows retracing the driving forces of the forecast and hence enables the interpretability of the forecast outcome.
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Gemeindegröße, Verwaltungsform und Effizienz der kommunalen Leistungserstellung – Das Beispiel Sachsen-Anhalt
Peter Haug
External Publications,
2012
Abstract
Municipality Size, Institutions and Efficiency of Municipal Service Provision: The Case of Saxony-Anhalt In this contribution we analyze the determinants of the efficiency of municipal service provision using the example of the German state of Saxony-Anhalt. The focus lies on the effects of municipality size, institutional setting and spatial or demographic factors. We perform a non-parametric efficiency estimation (Data Envelopment Analysis and the Convex-order-m approach by Daraio and Simar). In contrast to previous studies, we choose the aggregate budget of municipal associations as the object of our analysis since important competences are settled at the joint administrative level. The results show that municipal associations do not necessarily have to be less efficient than independent municipalities. Furthermore, the results for scale efficiency indicate that most municipalities of Saxony-Anhalt had a sufficiently efficient “firm size” in 2004. Moreover, demographic factors and settlement structures have a significant effect on the technical efficiency of towns and municipalities: While a higher population density might be, to some extent, efficiency-enhancing, an increasing share of senior citizens or population growth might have the opposite effect. The integration of spatial interdependencies in efficiency estimations is a complex problem that has only been solved insufficiently yet. However, the estimation results for Moran’s I show mostly statistically significant but, nevertheless, only little or moderate relationships between the single inputs and outputs. Hence, there is no cause for concern about a substantial bias in the results if we neglect spatial interrelationships in our calculation. Furthermore, we found no evidence that the surrounding municipalities benefit from their proximity to core cities by increased efficiency.
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Organization of EU Structural Policy in the Years 2007-20013 in Northwestern Germany, ed. by the German National Academy for Spatial Research and Planning
Martin T. W. Rosenfeld
Raumforschung und Raumordnung,
No. 2,
2013
Abstract
There is an ongoing debate on the effectiveness and efficiency of EU structural policies. New empiricial results for this discussion are now presented by a research group of the German Academy for Spatial Research and Planning (Akademie für Raumforschung und Raumordnung, ARL) for the institutional settings in the field of interregional support measures in Northwest Germany. The conclusions by the research group for future policies for regional and local economic development policies are not only relevant for Germany’s Northwest Region, but may in general stimulate the academic and public discussion on interregional support policy.
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Cooperation Events, Ego-Network Characteristics and Firm Innovativeness – Empirical Evidence from the German Laser Industry
Muhamed Kudic, Katja Guhr
IWH Discussion Papers,
No. 6,
2013
Abstract
We study how firm innovativeness is related to individual cooperation events and the structure and dynamics of firms’ ego-networks employing a unique panel dataset for the full population of 233 German laser source manufactures between 1990 and 2010. Firm innovativeness is measured by yearly patent applications as well as patent grants with a two year time-lag. Network measures are calculated on the basis of 570 knowledge-related publicly funded R&D alliances. Estimation results from a panel data count model with fixed effects are suggestive of direct innovation effects due to individual cooperation events, but only as long as structural ego-network characteristics are neglected. Innovativeness is robustly related to ego-network size and ego-network brokerage whereas ego-network density reveals some surprising results.
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Vertical Grants and Local Public Efficiency
Ivo Bischoff, Peter Bönisch, Peter Haug, Annette Illy
Abstract
This paper analyses the impact of vertical grants on local public sector efficiency. First, we develop a theoretical model in which the bureaucrat sets the tax price while voters choose the quantity of public services. In this model, grants reduce efficiency if voters do not misinterpret the amount of vertical grants the local bureaucrats receive. If voters suffer from fiscal illusion, i.e. overestimate the amount of grants, our model yields an ambiguous effect of grants on efficiency. Second, we use the model to launch a note of caution concerning the inference that can be drawn from the existing cross-sectional studies in this field: Taking into account vertical financial equalization systems that reduce differences in fiscal capacity, empirical studies based on cross-sectional data may yield a positive relationship between grants and efficiency even when the underlying causal effect is negative. Third, we perform an empirical analysis for the German state of Saxony-Anhalt, which has implemented such a fiscal equalization system. We find a positive relationship between grants and efficiency. Our analysis shows that a careful reassessment of existing empirical evidence with regard to this issue seems necessary.
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Grant Dependence, Regulation and the Effects of Formula-based Grant Systems on German Local Governments: A Data Report for Saxony-Anhalt
Peter Haug
IWH Discussion Papers,
No. 2,
2013
Abstract
Recent empirical studies have found – seemingly − efficiency-enhancing effects of vertical grants on local public service provision. The main purpose of this paper is to prepare an elaborate theoretical and empirical analysis of these contradictory results. Therefore, it investigates if certain fiscal and institutional conditions (fiscal stress, fiscal rank-preserving vertical grant systems, input- and output regulation), that might help to explain these empirical findings, are characteristic of at least some parts of the local government sector or certain regions. The German state of Saxony-Anhalt is chosen for case study purposes. The main results are: First, the local governments suffer from severe fiscal problems such as high grant dependency, low tax revenues and the prevalent inability to finance investments by own resources. Second, the output- and input-regulation density of certain mandatory municipal services (schools, childcare facilities, fire protection) is high. Finally, the most important vertical grant category for local governments, the formula-based grants (“Schlüsselzuweisungen”), can be described as mainly exogenous, unconditional block grants that in most cases preserve the relative fiscal position of the grant recipients.
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Increasing Pressure on East German Labor Market for Skilled Labor
Herbert S. Buscher
Wirtschaft im Wandel,
No. 11,
2012
Abstract
After a short break, the discussion of a possible labor market shortage for skilled and high skilled workers revived in the public debate. The paper evaluates the results of the latest IAB establishment survey for East German industrial firms with respect to planned employment within the next two years and the associated problems expected by the firms. The analysis distinguishes between the location of the firm, the size of the firms, measured by the number of employees, as well as with respect to the branch of industry the firm belongs to.. The results can be interpreted in a sense that actually there is no severe shortage of skilled labor at a large scale, but in the near future it will become more difficult for firms to find qualified employees.
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Bottom-up or Direct? Forecasting German GDP in a Data-rich Environment
Katja Drechsel, Rolf Scheufele
Abstract
This paper presents a method to conduct early estimates of GDP growth in Germany. We employ MIDAS regressions to circumvent the mixed frequency problem and use pooling techniques to summarize efficiently the information content of the various indicators. More specifically, we investigate whether it is better to disaggregate GDP (either via total value added of each sector or by the expenditure side) or whether a direct approach is more appropriate when it comes to forecasting GDP growth. Our approach combines a large set of monthly and quarterly coincident and leading indicators and takes into account the respective publication delay.
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Federal grants for local development to stop economic decline? – Lessons from Germany
Peter Haug, Martin T. W. Rosenfeld
Consequences of the International Crisis for European SMEs – Vulnerability and resilience. Routledge Studies in the European Economy, Routledge,
2012
Abstract
The chapter analyses theoretically and empirically the supply-side effects of the public investments funded by the German „Economic Stimulus Package II“(Konjunkturpaket II), which was implemented in 2009. In the theoretical part, we address the distortionary effects of investment grants on public capital provision and local economic development. According to the theoretical literature on the efficient provision of public goods, public inputs and economic growth, conditional investment grants have several negative allocation effects: First, they distort the relative factor prices for the local government stimulating excess public capital stocks and Pareto-inefficient provision of public goods. Second, long-term growth-enhancing effects of debt-financed public investment could only be expected for public inputs, which either directly increase the productivity of the private sector or increase factor productivity, especially by increasing the stock of human capital. In the empirical part, we find that despite of the recent increase in municipal investments in the German state of Saxony our regression results do not confirm a connection with the ESPII funds. Furthermore, no relationship between the municipal fiscal strength and the amount of ESPII grants received could be found. All in all, due to the focus of the grants on public consumption goods rather than public inputs only marginal future growth effects can be expected from the subsidized investments.
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Determinants of Evolutionary Change Processes in Innovation Networks – Empirical Evidence from the German Laser Industry
Muhamed Kudic, Andreas Pyka, Jutta Günther
Abstract
We seek to understand the relationship between network change determinants, network change processes at the micro level and structural consequences at the overall network level. Our conceptual framework considers three groups of determinants – organizational, relational and contextual. Selected factors within these groups are assumed to cause network change processes at the micro level – tie formations and tie terminations – and to shape the structural network configuration at the overall network level. We apply a unique longitudinal event history dataset based on the full population of 233 German laser source manufacturers and 570 publicly-funded cooperation projects to answer the following research question: What kind of exogenous or endogenous determinants affect a firm’s propensity and timing to cooperate and enter the network? Estimation results from a non-parametric event history model indicate that young micro firms enter the network later than small-sized and large firms. An in-depth analysis of the size effects for medium-sized firms provides some unexpected yet quite interesting findings. The choice of cooperation type makes no significant difference for the firms’ timing to enter the network. Finally, the analysis of contextual determinants shows that cluster membership can, but do not necessarily, affect a firm’s timing to cooperate.
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