Combining management plans and payment schemes for targeted grassland conservation within the Habitats Directive in Saxony,Eastern Germany

As central policies for biodiversity conservation in agricultural landscapes in the European Union (EU), the Habitats Directive and Agri-environmental programmes (AEP) have largely failed to halt biodiversity loss. In response, the German federal state of Saxony combined the instrument of management plans with AEPs to support the implementation of the Habitat Directive. In this study, we investigate the determinants of a farmers’ decisions to adjust their farming practices. Our data set consists of a quantitative survey with 131 farmers conducted between 2004 and 2011, complemented by implementation data from 333 grassland-plots. Determinants of farmers’ decisions to conserve grassland were estimated using a multinomial logit model. Our results show that a combination of management plans and AEPs can increase farmers’ disposition to adopt nature conservation measures. As central determinants, structural and location factors as well as the complementary provisiion of specifically designed AEPs increase farmers’ willingness to adopt conservation practices for grassland management. It can be concluded that additional costs are a major barrier to farmers’ adoption, particularly to those farms directing their farm management towards the optimisation of productivity and profitability . The findings highlight the complementary potential of integrated policy packages to incentivise specific measures of nature conservation within the framework of the Habitats Directive.     

Ad ratings when a marketer runs two commercial messages in one television program episode

Advertisers sometimes run two messages in one television program episode. We examine the ad-ratings consequences in passively recorded data. Previous findings suggest that repetition can reduce ad affect and attention duration. Viewers might therefore tend to zap the second message for one brand. If second messages are targeted for zapping, marketers might run only one message per episode. We observe channel changing near the start and end of ad breaks, but no targeted second-message zapping emerged. Marketers might therefore continue to buy two ad units in particularly interesting shows. Interestingly, networks separated the two messages for one brand into early and late program segments. In some shows, this separation may influence the relative ratings of the two messages. For example, the first ad had higher ratings in some shows that followed a much more popular program on the same network. However, the second ad had higher ratings in some game and reality shows with strong audience build-up in late running time. But in each of these situations, the pooled rating for the two ads did not differ from the program’s average ad rating. In sum, our data suggest that marketers don’t provoke targeted ad zapping by running two messages in a program episode.     

Data-driven robust mean-CVaR portfolio selection under distribution ambiguity

In this paper, we present a computationally tractable optimization method for a robust mean-CVaR portfolio selection model under the condition of distribution ambiguity. We develop an extension that allows the model to capture a zero net adjustment via a linear constraint in the mean return, which can be cast as a tractable conic programme. Also, we adopt a nonparametric bootstrap approach to calibrate the levels of ambiguity and show that the portfolio strategies are relatively immune to variations in input values. Finally, we show that the resulting robust portfolio is very well diversified and superior to its non-robust counterpart in terms of portfolio stability, expected returns and turnover. The results of numerical experiments with simulated and real market data shed light on the established behaviour of our distributionally robust optimization model.     

Us Debt and Deficits: Time to Reverse the Trend

This article provides a primer on budget deficits from the creation of the federal government. Today federal government spending is 24% of GDP (compared with its historical average of 8.8%), fuelling debt of historic levels. The only effective way to reduce debt levels is to cut entitlement programmes and then set a tax rate sufficient, over the course of the business cycle, to fund government spending.     

谈音乐在电视节目中的作用

当音乐进入电视,它就成为电视节目的一个重要组成部分,它从属于服务于电视节目。结合实际,针对音乐在电视节目中的作用进行了阐述。     

Acreage Response to Whole Farm Income Stabilisation Programmes

This article investigates whether Canadian whole farm programmes, which fall under the WTO category of Green Box subsidies, are truly production neutral. Theory suggests that with non‐constant risk aversion, risky decisions can be influenced by both the level of expected wealth (i.e. the wealth effect) and the variability of wealth (i.e. the insurance effect). Unlike previous approaches, this article is able to extend a framework developed by Chavas and Holt to formally incorporate the insurance effect into the acreage allocation decisions. By applying the theoretical model to acreage data in the Canadian Prairies, the results reveal that the whole farm income stabilisation programmes had large impacts on acreage choices through wealth and insurance effects. From a WTO perspective, the results underline the inherent difficulty in designing programmes that will reduce the risk faced by farmers without altering behaviour.     

关于安全优质播出的几点思考

在广播电视日益产业化、网络化、市场化的今天,它的功能也将随着广播电视物质技术基础的雄厚和观众需求的日益增长,得到越来越充分地发挥。本文对广播电视的安全优质播出进行简要的探讨。     

Speaking the same language: the relevance of neuro‐linguistic programming to effective marketing communications

Individuals process each and every encounter with the external environment using sensory system representations (pictures, sounds, feelings, etc.). Studies of neuro‐linguistic programming have indicated that each individual tends to have a preferred sensory representational system with which they will internally code these experiences. Market segments are comprised of individuals who, although possessing similarities across traditional segmentation bases, also have different preferred sensory modalities. Therefore, if consumers within any given target market segment do not all talk the same sensory language, marketers are failing to get their message across to everyone within that segment. This study is concerned with examining the efficacy of television advertising in communicating to those within a target group by exploring the links between the advertisements that ‘speak’ to them most and their preferred representational systems. It finds that participant reactions to those advertisements that they regarded as having the most effect were expressed predominantly in language relating to their preferred sensory representational systems. Furthermore, where participants with different representational systems chose the same advertisement as having the most effect, the reasons for their choice differed on a sensory basis.