This study systematically examines the impact of fundamental elements of urban economic structure on urban growth in Germany from 2003 to 2007. We test four elements simultaneously, that is sectoral specialization, diversification of economic activities, urban size as well as the impact of local competition. To account for the effect of varying spatial delimitations in the analysis of urban growth, we further differentiate between cities and planning regions as geographical units. The analysis covers manufacturing industries as well as service sectors. Most previous work produces inconsistent results and concentrates on localization economies and/or diversification, while urban size and the effect of local competition are widely ignored. Our regression results show a U-shaped relationship between localization economies and urban growth and positive effects of local competition on urban growth. With respect to diversification, we find positive effects on urban growth on the city-level, but insignificant results on the level of the planning regions. The impact of urban size also differs between free cities and planning regions; in the former a U-shaped relationship is found whereas the effect is inversely U-shaped for the latter.

The Volume XIV analyses the “New Growth and Poverty Alleviation Strategies for Africa“. Institutional issues and perspectives in designing new growth and poverty alleviation strategies are considered in various case studies (Cote d'Ivoire, Nigeria, Botswana and Tanzania). Other studies deal with institutional problems of resource-rich countries after conflict (Sudan) and with the institutions to enhance environmental protection parallel to economic growth and poverty reduction (Niger). Further studies deal with institutions to bridge the gap between formal and informal entrepreneurial sectors in Kenya and Tanzania. Local issues and perspectives for designing new growth and poverty alleviation strategies are considered in case studies on rural-urban development gaps in Tanzania and on microfinance as an instrument for new growth and poverty alleviation strategies (Tanzania and Eritrea). A study on small farmers in Ghana provides information on the role they can play in value chains. Two studies on Nigeria highlight the local and the sub-regional health and poverty alleviation programmes and the relation to growth. Book reviews and book notes on the theme are part of the volume. This volume builds the foundation for a comprehensive strategy of policy reforms in Africa so as to integrate new growth and poverty alleviation strategies. Complementary to Volume XIV is Volume XIII on “New Growth and Poverty Alleviation Strategies for Africa - Interational and Regional Perspectives“. Both volumes are of importance for all those who work in African countries as officials, executives, managers, researchers, and policy-makers, but also for all those who actively support Africa's development concerns at the international, regional, country, local, and project levels. They will experience this Volume XIV and also the complementary Volume XIII as indispensable sources of insight, reference, and inspiration.

The rising attention of politicians as well as scientists in the EU to the large urban agglomerations as centres of economic growth is accompanied by political efforts to identify and to demarcate such agglomerations under the label ‘metropolitan regions’. This study develops a theoretical framework broaching the issue of cooperation between municipalities from the perspective of regional economics as well as political science. The framework is applied to the empirical case of the polycentric metropolitan region ‘Saxony Triangle’ in East Germany. The results show that various intervening factors prevent intense cooperation between the actors in the region. Policy implications and con-

clusions for future research are discussed.

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).

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.

This paper analyses the economic capability of East German regions compared with West German regions. Based on new growth theory and new economic geography, and using relevant empirical literature, regions are clustered according to a set of growth factors. The clustering results find little evidence that the economic capability of East German regions is already comparable with West German regions. Economic disadvantages are particularly rooted in lower technical progress, a lack of entrepreneurship, lower business and industrial concentration, and a loss of human capital. However, there are a few East German regions with a high economic capability, but even those suffer from economic disadvantages such as lower technical progress, lower industrial activity and a poorer regional accessibility.

This paper examines whether some East German regions have already achieved the same economic capability as the regions in West Germany, so that they are on a competitive basis with the West German regions and are able to reach the same economic level in the long run. If this is not the case, it is important to know more about the reasons for the economic weakness of the East German regions twelve years after unification.

The study is based on a cluster analysis. Criteria for the cluster formation are several economic indicators, which provide information about the economic capability of regions. The choice of the indicators is based on a review of results of the theoretical and empirical literature on the new growth theory and new economic geography.

The results show that most of the East German regions have not yet reached the economic capability and competitiveness of their West German counterparts so that they - from the viewpoint of the new growth theory and the new economic geography - are not in the position to reach the same economic level. According to these theories economic disadvantages are most notably the consequences of less technical progress, a lack of entrepreneurship and fewer business concentration. Under these points it is especially noteworthy that young well educated people leave these East German regions so that human capital might will turn into a bottle-neck in the near future. Only a few regions in East Germany - those with important agglomerations - are comparable to West German regions that are characterised by average capability and competitiveness, but not to those with above average economic capability and competitiveness. Even those more advanced East German regions still suffer from a slower technical progress.

There are important policy implications based on these results: regional policy in East Germany was not able to assist raising all regions to a sufficient level of competitiveness. It may be more effective to concentrate the regional policy efforts on a selection of important agglomerations. This has also strong implications for the EU regional policy assuming that the accession countries will have similar problems in catching up to the economic level of the EU as have the East German regions.