Theory suggests that firm value should include the value of real options; that is, firms have the option to expand more profitable businesses and liquidate less profitable businesses. In a diversified firm, each segment has its own real options. Applying real options theory to a diversified firm...

Existing studies have debated on the information content and the predictive power on future stock returns of short interests-the number of shares of a stock sold short. We explore a unique institutional feature on the time lag between monthly recording of short interests and their public release...

Analysis of household expenditure surveys since 2008 in 22 Sub-Saharan African countries shows that one-third of all people use electricity. As expected, users are disproportionately urban and rich. In communities with access to electricity, lack of affordability is the greatest barrier to...

Analysis of household expenditure surveys since 2008 in 22 Sub-Saharan African countries shows that one-third of all people use electricity. As expected, users are disproportionately urban and rich. In communities with access to electricity, lack of affordability is the greatest barrier to...

Analysis of household energy use has tended to focus on primary energy sources for cooking, lighting, and heating. However, even those using clean primary energy sources are not necessarily free from household air pollution and the burden of biomass collection because of commonly practiced fuel...

Directional regulation of polyol oxidation selectivity by constructing active sites with specific structure is a critical yet challenging problem. Herein, we successfully designed efficient Au-Cu-ZnO interfacial sites to promote selective oxidation of glycerol (GLY) to 1,3-dihydroxyacetone (DHA)...

Chiral cell structures have the potential to transform the robot design field because of the structures’ ability to adopt various deformations under uniaxial load, such as twisting and a negative Poisson’s ratio. The rationale that underpins this potential is asymmetric deformation that is...