Geothermische Stromerzeugung in Deutschland — Stiefkind oder schlafender Riese?

This contribution analyses the development of power generation from geothermal energy in Germany. It considers research funding schemes, the support through the german Renewable Energy Sources Act (EEG) and the role of decisive actors as well as technical, economic and societal framework conditions. Compared to other renewable energy sources research funding for geothermal energy had played an inferior role in the past. After the potentials for geothermal power generation had been underlined by a study in 2003, geothermal power gained more political and institutional advocates. Subsequently it was equipped with a higher tariff in the EEG 2004 and led to realization of demonstration projects. Yet, the appliance of technologies for electrical power transformation, ORC and Kalina, are at the very beginning. Presently, the geothermal energy industry consists of a small amount of medium-sized businesses. Regional and nationwide energy providers, acting as operators and investors, do not exert much pressure in view of limited returns. Despite the compatibility with existing power supply systems, constraints to the expansion of geothermal energy use — above all exploration risks and high drilling costs- are likely to lead to a step-by step enhancement rather than a rush.     

Responsibility in the interconnected economy

This article seeks to establish a link between the field of business ethics and information ethics by exploring the connection between responsibility and the Internet from an economic perspective. This link finds its expression in the moral theory of Discourse Ethics as suggested by German philosophers such as Juergen Habermas and Karl‐Otto Apel. The term responsibility points in the direction of communication and therefore leads easily to discourse ethics. The economy in general and most economic practices also seem to be intimately linked to questions of responsibility. The growing spread and importance of the Internet poses new challenges and problems but also creates new possibilities for ethics as well as for the economy. Here several of these new developments are analysed and their impact on ethics as well as economy assessed. Consequences for the use and development of information technology are considered.     

Second-Best Pollution Taxes: an Analytical Framework and Some New Results

This paper compares the second-best optimal tax on polluting consumption goods with the Pigovian tax, which would internalize marginal environmental damage at a second-best optimum. It is shown that the relationship between the optimal tax on polluting consumption and the Pigovian tax is determined by the substitutability between labour and polluting consumption or clean and polluting consumption, depending on whether a wage tax system or a commodity tax system is being considered. The key factor determining the relationship between the two taxes is gross substitutability between the two taxed goods. As long as there is gross substitutability, the optimal dirt tax exceeds the Pigovian tax. The opposite can occur if and only if the two goods are gross complements.     

Asset allocation and multivariate position based trading

I add a second risky asset and a risk free bond to the univariate artificial market investigated by Lux and Marchesi (Int J Theor Appl Finance 3(4):675–702, 2000), keeping track of traders aggregate positions and wealth. Asset allocation and security selection are modeled as separate decision processes, as is common practice in financial institutions. Introducing position based trading avoids inconsistencies in traders inventories resulting from the order based setup of the original model, while preserving its ability to reproduce the stylized facts of financial return series.      

Policy instruments for sustainability‐oriented organizational learning

The concept of sustainable development implies the need for organizational learning in business corporations to find innovative solutions. In this context, the paper analyzes the requirements and options for environmental policy to induce sustainability‐related learning processes in corporations. It discusses the impacts of different policy instruments on these processes. Initially, the particular challenges of organizational learning for sustainability are being sketched out. Drawing on organizational learning studies, a subsequent section of the paper addresses fundamental elements and drivers for organizational learning processes on different levels in business corporations. The particular nodes where public policy can influence corporate learning processes are the central focus of these considerations. On this basis, we examine existing policy instruments frequently used in environmental policy with regard to their potential to foster learning processes towards sustainability. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment.     

The impact of news,oil prices,and global market developments on Russian financial markets1

This paper analyses the impact of news, oil prices, and international financial market developments on daily returns on Russian bond and stock markets. First, regarding returns, energy news affects returns, while news from the war in Chechnya is not significant. Market volatility does not appear to be sensitive to either type of news. Second, a significant effect of the growth in oil prices on Russian stock returns is detected. Third, the international influence on Russian financial markets depends upon the degree of financial liberalization. The higher the degree of financial liberalization, the stronger is the impact of US stock returns on Russian financial markets. In addition, banking reform and interest rate liberalization efforts seem to dictate the globalization of Russian stock markets, while it is the progress in liberalizing securities markets and non‐bank financial institutions that matters more for the globalization of Russian bond markets.     

Optimal Capital Income Taxes and Capital Controls in Small Open Economies

This paper studies the optimal taxation of capital income in a simplemodel of a small open economy where domestic residents can evade taxeson their foreign investment income. The national government can onlytax domestic capital income and can impose capital controls, whichhowever absorb real resources. The design of optimal policy in thismodel depends on the revenue needs of the government. For relativelylow levels of government expenditures, it turns out that the countrydoes not levy capital income taxes but may restrict capital exports.Otherwise, the country taxes domestic capital income and sets capitalcontrols such that capital exports are driven to zero, at an optimum.In contrast to other models with capital controls it turns out thatthis policy can lead to underinvestment in domestic capital.JEL Classification Number: E 62, F 41, H 21