Firms’systematic risk falls (increases) sharply following investment (disinvestment). This risk dynamics is driven by real investment and not by changes in …rm characteristics and is strongest among …rms with valuable investment opportunities, highly irreversible investment and low operating leverage. Consistent with rational pricing, …rms with poor investment opportunities, those most likely t...

R esidential investment is one of the most volatile components of GDP. Coming out of a recession, it is not uncommon for residential investment to jump by more than 20 percent in a year. Going into a recession, it may fall by a similar fraction. Thus, while residential investment accounts for just 4 percent of GDP, it can have a disproportionate influence at critical junctures. Fluctuations in ...

COVID-19 has led the market into a highly volatile period. Risks in investment have increased significantly during this time. Although risk-prone investors are able to withstand high risk and continue invest, risk-averse risk-neutral do not that level of tolerance. This study focuses on stocks from sectors affected by pandemic, it aims analyze best sector for construct an optimal portfolio is m...

We propose a highly available replication control protocol tailored to environments where network partitions are always the result of a gateway failure. Our protocol divides nodes holding replicas into local nodes that can communicate directly with each other and non-local nodes that communicate with other nodes through one or more gateways. While local nodes are assumed to remain up to date as...

A key drawback of the current generation of artificial decision-makers is that they do not adapt well to changes in unexpected situations. This paper addresses the situation in which an AI for aerial dog fighting, with tunable parameters that govern its behavior, will optimize behavior with respect to an objective function that must be evaluated and learned through simulations. Once this object...

Metabolic engineering of the volatile spectrum offers enormous potential for plant improvement because of the great contribution of volatile secondary metabolites to reproduction, defense and food quality. Recent advances in the identification of the genes and enzymes responsible for the biosynthesis of volatile compounds have made this metabolic engineering highly feasible. Notable successes h...

Investment in advanced defense technologies is a common characteristic of modern age armed forces. The operational benefit of such technologies is an S-shaped function of their technological progress, which is highly uncertain. We model investment problem facing a defense decision maker, aiming to maximize the value of a military system, by choosing its target technological level and the quanti...

Egypt is considering initiatives to deploy renewable energies, such as solar and wind; these would be financed through national and international public funds and private investment. Direct and induced impacts of investments could be significant drivers of socioeconomic development in Egypt, which currently has high level of poverty and unemployment plus volatile economic growth due to recent p...