Wer wird Professor für Kommunikationswissenschaft und Journalistik?

Der vorliegende Beitrag fragt nach der demographischen Struktur der zentralen akademischen Akteure der Kommunikationswissenschaft in Deutschland und nach m?glichen Ver?nderungen dieser Struktur in den letzten 50 Jahren. Die Analyse zeigt zum einen, dass von einem einheitlichen Zugang zum Hochschullehrerberuf nach wie vor keine Rede sein kann, und zum anderen, dass das Fach vor einer demographischen Herausforderung steht. Die Kommunikationswissenschaft hat sich durch Akademisierung und ?Versozialwissenschaftlichung? von ihren Wurzeln gel?st. War Berufserfahrung im Medienbereich bis in die 1960er Jahre Voraussetzung für eine Berufung, verfügt heute nur noch eine Minderheit über solche Erfahrungen. Da die Existenz des Faches im Rahmen der Universit?t auch von der Nachfrage der Studierenden abh?ngt, kann man über die Folgen des anstehenden Generationswechsels nur spekulieren. In jedem Fall fehlt es an formal für die Hochschullehrerlaufbahn qualifiziertem Nachwuchs. Deshalb sind erhebliche Anstrengungen erforderlich, wenn der Boom im letzten Drittel des 20. Jahrhunderts sich nicht als Seifenblase erweisen soll.     

Reorganizing Two-Tier Local Government for Regional Assemblies

The Government has decided that referenda will be held in three northern regions of England regarding the establishment of elected regional assemblies. If these are established, the areas with two-tier local government would be converted to unitary structures. The Government asserts that this would be necessary because the retention of the two tiers would be the retention of one tier too many, but offers no evidence to back up this assertion. This assertion has been tested by an analysis of the Audit Commission's Comprehensive Performance Assessment (CPA) ratings for the single tier and county councils, which shows that the counties have achieved better assessments than the other principal authorities. In addition, the Boundary Committee has been advised by the Government to use a costing model which is seriously inadequate: transition costs are ignored and the basis for assessing on-going costs is extremely narrow. Transition costs would be at least £110 per resident in the two-tier areas if there were to be three unitary councils for each county area, and there is no reasonable prospect that there would in fact be on-going savings except with unitary counties.     

Agricultural Extension: Good Intentions and Hard Realities

What considerations lead policymakers to invest in agriculturalextension as a key public responsibility, and what factors andagency incentives explain differences in extension system performance?To help answer these questions, this article provides a frameworkoutlining farmers' demand for information, the public goodscharacter of extension services, and the organizational andpolitical attributes affecting the performance of extensionsystems. This conceptual framework is used to analyze severalextension modalities and their likely and actual effectiveness.The analysis highlights the efficiency gains that can come fromlocally decentralized delivery systems with incentive structuresbased on largely private provision, although in most poorercountries extension services will remain publicly funded.      

Zur verteilungsfreien Ableitung der Streuung von Regressionskoeffizienten ohne Voraussetzung der Nullhypothese

Ohne Zusammenfassung     

A Cash Flow Model of Rational Housing Tenure Choice*

This paper develops a model of housing costs in a cash flow framework. The cash flow approach allows both the consumption and investment aspects of tenure choice to be analyzed. By solving the model for the rental flow equivalent to any owning situation, we can determine whether or not a household would buy or rent from an economic perspective. The results are very sensitive to the household's income, the expected duration of occupancy, the mortgage interest rate, and inflation expectations. The results suggest that “rule-of-thumb” generalizations about tenure choice are often ill-founded, and that studies of tenure choice need to explicitly consider the interaction of income, taxes, length of occupancy and expectations.     

Transaction costs and crop marketing in the communal areas of Impendle and Swayimana,KwaZulu-Natal

High transaction costs are detrimental to the efficient operation or existence of markets for inputs and outputs. The cost of information and the costs associated with the search for trade partners, the distance to formal markets and contract enforcement are likely to influence the marketing of food crops. This study hypothesises that the level of income generated from food-crop sales by small-scale farmers in the Impendle and Swayimana districts of KwaZuluNatal is influenced by transaction costs and certain household and farm characteristics. Regression analysis shows that the depth of marketing methods is significantly influenced by transaction cost proxies, such as cooperation with large commercial farmers and ownership of means of transport. Results from a block-recursive regression analysis show that the level of crop income generated is determined by the depth of marketing methods, the size of allocated arable land and off-farm income. Households with lower transaction costs, sizeable allocated land and off-farm income can be expected to generate higher income from food crops. Investment in public goods such as roads, telecommunications and an efficient legal system (to uphold commercial contracts), as well as farmer support services (input supply, extension, marketing information and research), would probably raise farm and non-farm income by reducing transaction costs. This would increase the effective demand for locally produced goods and services, thus contributing to rural employment and livelihoods within rural communal areas.     

Variety,Globalization, and Social Efficiency

The standard formal presentation of the Dixit‐Stiglitz‐Krugman (DSK) model of monopolistic competition with a constant‐elasticity‐of‐substitution (CES) utility function supposes a sufficient number of firms so that the elasticity of demand facing each variety is approximated by a constant elasticity of substitution. Such a formulation forces economies of scale to be frozen so that firm size never changes. We use a Bertrand‐Nash interpretation of the equilibrium that allows the elasticity of demand facing each variety to depend on the number of varieties, thus allowing the gains from globalization to reflect both the increase in variety and the exploitation of economies of scale. We also develop a precise expression for per capita real income with any number of sectors and examine the age‐old question of the socially optimal number of varieties.     

Public market staging: The timing of capital infusions in newly public firms

We examine financing activities of newly public firms for evidence on capital staging in the public equity market. Staging (sequential financing) can increase issuance costs but can limit costs associated with overinvestment. We find evidence consistent with the hypothesis that staging is employed to help control the overinvestment problem in public firms. Initial public offering (IPO) proceeds, relative to external financing requirements, are smaller for firms with more intangible assets and more research and development (R&D)-intensive firms. Asset intangibility and R&D intensity are also both negatively related to the length of time from a firm's IPO to its first post-IPO capital infusion.