Michail Chronopoulos

  • Citations Per Year
Learn More
This study focuses on sea propagation environments and presents results on the characterization of the over-the-sea wideband mobile radio channel. Conducted measurements led to the development of path loss, log-distance models. The behavior of the power delay profile is also investigated in detail. In general, the mean excess delay and delay spread values(More)
Traditional real options analysis addresses the problem of investment under uncertainty assuming a risk-neutral decision maker and complete markets. In reality, however, decision makers are often risk averse and markets are incomplete. We confirm that risk aversion lowers the probability of investment and demonstrate how this effect can be mitigated by(More)
This study focuses on the power delay profile (PDP) of sea propagation environments. Sounding measurements were conducted for above the sea mobile propagation channels aiming at the extraction and characterization of the channel's PDP. As concluded, PDP presents a discontinouous, and "spiky" shape. Line-of-sight propagation generally resulted in very small(More)
This study focuses on small scale characterization of sea propagation environments. Conducted measurements were used to extract results on the time dispersive and on the time variant nature of the channel. As concluded, power delay profile presents a singular, "spiky" shape. The delay parameters for line-of-sight propagation conditions are low, while in the(More)
Firms that use an emerging technology often face uncertainty in both the arrival of new versions and the revenue that may be earned from their deployment. Via a sequential decision–making framework, we determine the value of the investment opportunity and the optimal replacement rule under three different strategies: compulsive, laggard, and leapfrog. In(More)
A new Greek Code is already approved and in force, covering structural assessment, interventions (repair or/and strengthening) and redesign of existing reinforced concrete (RC) structures, in line with the relevant provisions of Euro-Codes, and especially of EC 8-1 : 2004 and of EC 8-3 : 2005(for new and existing structures, respectively). Among the various(More)
Traditional real options analysis addresses investment under uncertainty assuming a risk-neutral decision maker and complete markets. In reality, however, decision makers are often risk averse and markets are incomplete. Additionally, capital projects are seldom nowor-never investments and can be abandoned, suspended, and resumed at any time. In this(More)
A monopolist typically defers entry into an industry as both price uncertainty and the level of relative risk aversion increase. The former attribute may be present in most deregulated industries, while the latter may be relevant for reasons of market incompleteness or the presence of technical uncertainty. By contrast, it has been shown that the presence(More)
Investments in the area of technological innovations are particularly risky, since, apart from price uncertainty, firms must take into account not only uncertainty in the arrival of innovations but also the presence of potential rivals. Therefore, we develop an analytical framework for sequential investment in order to determine how duopolistic competition(More)