Data Envelopment Analysis (DEA) has become an established approach for analyzing and comparing efficiency results of corporate organizations or economic agents. It has also found wide application in comparative studies on airport efficiency. The standard DEA approach to comparative airport...

Most macroeconomic models treat the central bank and the treasury as a unified entity. The balance sheet of the central bank is therefore implicitly treated as an accounting fiction. While this is often realistic, the central bank balance sheet today, with the US and ESCB balance sheets nearly...

Since its introduction, the European Emissions Trading Scheme (EU ETS) has been struggling with an oversupply of emission allowances and a highly volatile allowance price. One reason for the price decline is technological progress and ist demand-reducing effect, which is only partially taken...