User needs for a given product type can be quite heterogeneous. Segmenting the market and providing solutions for average user needs in each segment is a partial answer that will typically leave many dissatisfied – some seriously so. We hypothesize that providing users with “toolkits for user innovation” to enable them to more easily design customized products for themselves will increase user ...

Photocatalytic reduction of carbon dioxide to formaldehyde was investigated on four semiconductor photocatalysts (FeS, FeS/FeS2, NiO and TiO2). The reaction was carried out in continues flow of CO2 gas bubbled into the reactor. Semiconductor photocatalysts were characterized by X-Ray diffraction (XRD) and Diffuse Reflectance Spectroscopic (DRS) methods. Sulfide ion was used as hole scavenger. T...

In this paper, we propose a new agent-based model to study the source of liquidity and the ‘‘emergent’’ phenomenon in financial market with fractal structure. Themodel rests on fractal market hypothesis and agents with different time horizons of investments. What is interesting is that though the agent-based model reveals that the interaction between these heterogeneous agents affects the stabi...

Trade and Labor Reallocation with Heterogeneous Enforcement of Labor Regulations This paper revisits the question of how trade openness affects labor market outcomes in a developing country setting. We explore the fact that plants face varying degrees of exposure to global markets and to the enforcement of labor market regulations, and rely on Brazil’s currency crisis in 1999 as an exogenous so...

This article aims is to verify if the Egyptian stock market has information efficiency (market assumptions) by studying presence of time series properties for daily returns between 2005 and 2015. Parametric non-parametric tests are used achieve this purpose, such as ADF/PP unit root- RUNS TEST- Perron - run test. The Jarque– Bera test was measure moderation returns; GARCH model ARCH also. resul...