Shrinking due to corpulence? BMI in childhood predicts subsequent linear growth among US children and youth, 1963-1970
Marco Sunder
Annals of Human Biology,
2008
Abstract
While the USA is one of the most opulent countries, its population is not among the tallest but is among the most corpulent. This short report investigates the association between body mass index in childhood and subsequent change in height-for-age at the individual level, based on data from the National Health Examination Study (1963-1970). A sub-sample of participants in this survey was measured twice at intervals between 2.3 and 4.4 years, and assessed bone age can be used to account for differences in maturation at baseline. Regression results indicate that a BMI-for-age above the 85th percentile is associated with a reduction in growth by 0.03-0.06 height-for-age standard deviations per year, or roughly 1 cm within 4 years. An inefficiently high nutritional status in childhood may thus jeopardize subsequent linear growth. However, the trans-Atlantic height gap is considerably larger than what this empirical relationship could predict.
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Regional origins of employment volatility: evidence from German states
Claudia M. Buch
CES IFO Working Paper No. 2296,
2008
Abstract
Greater openness for trade can have positive welfare effects in terms of higher growth. But increased openness may also increase uncertainty through a higher volatility of employment. We use regional data from Germany to test whether openness for trade has an impact on volatility. We find a downward trend in the unconditional volatility of employment, paralleling patterns for output volatility. The conditional volatility of employment, measuring idiosyncratic developments across states, in contrast, has remained fairly unchanged. In contrast to evidence for the US, we do not find a significant link between employment volatility and trade openness.
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Growth versus Equalisation? An Examination of Strategies for Regional Policy in the Czech Republic, Hungary and Poland after EU Accession
Gerhard Heimpold
Jahrbuch für Regionalwissenschaft,
Nr. 1,
2008
Abstract
Im Beitrag wird am Beispiel der drei neuen Mitgliedsländer der Europäischen Union (EU) - Tschechische Republik, Ungarn und Polen - untersucht, wie dort in der Phase nach dem EU-Beitritt im Rahmen der verfolgten regionalpolitischen Strategien das Verhältnis zwischen Wachstums- und Ausgleichsziel ausgestaltet wurde. Die Untersuchung betrifft den Einsatz der EU-Strukturfonds-Mittel für regionalpolitische Zwecke im Zeitraum 2004-2006 und gibt einen Ausblick auf die Förderperiode 2007 bis 2013. Trotz gewisser im Detail sichtbarer Unterschiede bei der Gewichtung zwischen Wachstums- und Ausgleichziel verfolgen alle drei untersuchten Länder eine Doppelstrategie, die sowohl auf die Stärkung vorhandener Entwicklungspole als auch auf die Unterstützung der schwächsten Regionen ausgerichtet ist. In der begonnenen Förderperiode 2007-2013 könnte sich im Zusammenhang mit der Absicht, die EU-Strukturpolitik stärker in Einklang mit der Lissabon-Agenda zu bringen, Anreize für eine
ausgeprägtere Wachstumsorientierung in der Regionalpolitik der drei Länder ergeben.
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Spillover Effects of Spatial Growth Poles - a Reconciliation of Conflicting Policy Targets?
Alexander Kubis, Mirko Titze, Joachim Ragnitz
IWH Discussion Papers,
Nr. 8,
2007
Abstract
Regional economic policy faces the challenge of two competing policy goals - reducing regional economic disparities vs. promoting economic growth. The allocation of public funds has to weigh these goals particularly under the restriction of scarce financial re- sources. If, however, some region turns out to be a regional growth pole with positive spillovers to its disadvantaged periphery, regional policies could be designed to recon- cile the conflicting targets. In this case, peripheral regions could indirectly participate in the economic development of their growing cores. We start our investigation by defining and identifying such growth poles among German regions on the NUTS 3 administrative level based on spatial and sectoral effects. Using cluster analysis, we determine significant characteristics for the general identification of growth poles. Patterns in the sectoral change are identified by means of the change in the employment. Finally, we analyze whether and to what extent these growth poles ex- ert spatial spillover effects on neighbouring regions and thus mitigate contradictory in- terests in regional public policy. For this purpose, we apply a Spatial-Cross-Regressive- Model (SCR-Model) including the change in the secondary sector which allows to con- sider functional economic relations on the administrative level chosen (NUTS 3).
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Systematic Mispricing in European Equity Prices?
Marian Berneburg
IWH Discussion Papers,
Nr. 6,
2007
Abstract
One empirical argument that has been around for some time and that clearly contra- dicts equity market efficiency is that market prices seem too volatile to be optimal estimates of the present value of future discounted cash flows. Based on this, it is deduced that systematic pricing errors occur in equity markets which hence can not be efficient in the Effcient Market Hypothesis sense. The paper tries to show that this so-called excess volatility is to a large extend the result of the underlying assumptions, which are being employed to estimate the present value of cash flows. Using monthly data for three investment style indices from an integrated European Equity market, all usual assumptions are dropped. This is achieved by employing the Gordon Growth Model and using an estimation process for the dividend growth rate that was suggested by Barsky and De Long. In extension to Barsky and De Long, the discount rate is not assumed at some arbitrary level, but it is estimated from the data. In this manner, the empirical results do not rely on the prerequisites of sta- tionary dividends, constant dividend growth rates as well as non-variable discount rates. It is shown that indeed volatility declines considerably, but is not eliminated. Furthermore, it can be seen that the resulting discount factors for the three in- vestment style indices can not be considered equal, which, on a risk-adjusted basis, indicates performance differences in the investment strategies and hence stands in contradiction to an efficient market. Finally, the estimated discount rates under- went a plausibility check, by comparing their general movement to a market based interest rate. Besides the most recent data, the estimated discount rates match the movements of market interest rates fairly well.
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Globalisation and Euro Area Trade: Interactions and Challenges
Filippo di Mauro, Ursel Baumann
ECB Occasional Paper,
Nr. 55,
2007
Abstract
As a major player in world trade, the euro area is strongly influenced by globalisation, but is far from being a passive spectator. The paper analyses how the euro area's trade specialization has changed in response to stronger international competition and the emergence of new global players, evaluating results and possible challenges ahead. The message remains mixed. On the positive side, the export specialisation of the euro area is increasing in some medium-high or high-tech sectors where productivity growth is strong and demand robust, such as pharmaceuticals, also by a more intensive recourse to importing intermediate goods from low-cost countries. On the other hand, in comparison to other industrialised economies, the euro area has been somewhat slower in moving towards research-intensive goods and away from labour-intensive sectors. While this could reflect data classification issues, it may also be a sign of structural rigidities in the euro area, which hinder adjustment processes.
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The relationship between unemployment and output in post-communist countries
Hubert Gabrisch, Herbert Buscher
Post-Communist Economies,
2006
Abstract
Unemployment is still disappointingly high in most Central and East European countries, and might be a reflection of the ongoing adjustment to institutional shocks resulting from systemic transition, or it may be caused by high labour market rigidity, or aggregate demand that is too weak. In this paper we have investigated the dynamics of unemployment and output in those eight post-communist countries, which entered the EU in 2004. We used a model related to Okun’s Law; i.e. the first differences in unemployment rates were regressed on GDP growth rates. We estimated country and panel regressions with instrument variables (TSLS) and applied a few tests to the data and regression results. We assume transition of labour markets to be accomplished when a robust relationship exists between unemployment rate changes and GDP growth. Moreover, the estimated coefficients contain information about labour market rigidity and unemployment thresholds of output growth. Our results suggest that the transition of labour markets can be regarded as completed since unemployment responds to output changes and not to a changing institutional environment that destroys jobs in the state sector. The regression coefficients have demonstrated that a high trend rate of productivity and a high unemployment intensity of output growth have been occurring since 1998. Therefore, we conclude that labour market rigidities do not play an important role in explaining high unemployment rates. However, GDP growth is dominated by productivity progress and the employment-relevant component of aggregate demand is too low to reduce the high level of unemployment substantially.
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Enhanced Cooperation in an Enlarged EU, CeGE-Discussion Paper No. 53
J. Ahrens, Renate Ohr, Götz Zeddies
,
2006
Abstract
The paper adresses the need for more flexibility in the integration process of the European Union after its recent eastward enlargement. Due to the increasing number of decision-makers and the increasing heterogeneity of economic structures, financial constraints, societal preferences, and political interests, European integration based on the uniformity principle is hardly feasible. In order to avoid a rank growth of integration and yet to strengthen the momentum of flexibility, so-called enhanced cooperation appears to be an appropriate instrument to be applied to the overall integration process. In this context the paper analyzes different possible developments of selected common policies in the EU if enhanced cooperation is practised by a sub-group of EU-members. Based on cluster analysis similarities and distinctions among the EU members with respect to some specific policy realms are elaborated to identify clusters, or clubs, of countries which may apply the instrument of enhanced cooperation in the specific policy fields.
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Heterogeneity in Lending and Sectoral Growth: Evidence from German Bank-level Data
A. Schertler, Claudia M. Buch, N. von Westernhagen
International Economics and Economic Policy,
2006
Abstract
This paper investigates whether heterogeneity across firms and banks matters for the impact of domestic sectoral growth on bank lending. We use several bank-level datasets provided by the Deutsche Bundesbank for the 1996–2002 period. Our results show that firm heterogeneity and bank heterogeneity affect how lending responds to domestic sectoral growth. We document that banks’ total lending to German firms reacts pro-cyclically to domestic sectoral growth, while lending exceeding a threshold of €1.5 million to German and foreign firms does not. Moreover, we document that the response of lending depends on bank characteristics such as the banking groups, the banks’ asset size, and the degree of sectoral specialization. We find that total domestic lending by savings banks and credit cooperatives (including their regional institutions), smaller banks, and banks that are highly specialized in specific sectors responds positively and, in relevant cases, more strongly to domestic sectoral growth.
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Economic convergence across German regions in light of empirical findings
Udo Ludwig, John B. Hall
Cambridge Journal of Economics,
2006
Abstract
This paper challenges the convergence hypothesis advanced by R. Barro and X. Sala-i-Martin as it is applied to explain the forces behind, patterns exhibited by and time line for German regional convergence. Exposed in some detail are the spurious neoclassical and marginalist assumptions, purporting that 'automatic' forces would indeed bring about a convergence in per capita incomes between two German regions. A trend exhibiting slow growth in per capita income in Germany's eastern region renders a Beta coefficient so low as to rule out convergence altogether. In addition, capital fails to move between German regions in the pattern assumed by the convergence hypothesis.
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