Dragon-king extreme events as precursors for catastrophic transition

Active Distribution Networks Restoration after Extreme Events

After extreme events such as floods, thunderstorms, blizzards and hurricanes there will be devastating effects in the distribution networks which may cause a partial or complete blackout. Then, the major concern for the system operators is to restore the maximum critical loads as soon as possible by available generation units.  In order to solve this problem, this paper provides a restoration s...

Precursors and prediction of catastrophic avalanches

Agent Models of Catastrophic Events

The study of complex phenomena, such as the interplay between human and natural systems, requires models. To allow for an orderly study of the effects of individual actions the model must comprise different scales of granularity, individuals and aggregates. In a joint research project between IIASA (Austria), DSV (Sweden) and the Hungarian Academy of Science, the flooding problem of Upper Tisza...

Climate change increases the likelihood of catastrophic avian mortality events during extreme heat waves.

Severe heat waves have occasionally led to catastrophic avian mortality in hot desert environments. Climate change models predict increases in the intensity, frequency and duration of heat waves. A model of avian evaporative water requirements and survival times during the hottest part of day reveals that the predicted increases in maximum air temperatures will result in large fractional increa...

Riding the Dragon : Entrepreneurship under Market Transition

This dissertation focuses on three of the most important questions in entrepreneurship study, namely venture financing, corporate strategy and firm performance. The main thrust of the dissertation is to elaborate the mechanisms through which institutional and social factors impact entrepreneurial activities in developing countries. The first essay, "Evaluation or Attention", examines the causal...