Results 111 to 120 of about 343,410 (309)
A NAÏVE APPROACH TO SPEED UP PORTFOLIO OPTIMIZATION PROBLEM USING A MULTIOBJECTIVE GENETIC ALGORITHM
Investigaciones Europeas de Dirección y Economía de la Empresa, 2012 Genetic algorithms (GAs) are appropriate when investors have the objective of obtaining mean‑variance (VaR) efficient frontier as minimising VaR leads to non‑convex and non‑differential risk‑return optimisation problems.
Baixauli-Soler, J. Samuel +2 more
doaj +1 more source
Technical Efficiency in Portuguese Dairy Farms [PDF]
This paper addresses issues related to efficiency measurement from an empirical point of view. A stochastic frontier production model using a translog is estimated for a group of Portuguese dairy farms. Farm level survey data for the period 1988 -2005 is
Lopes, Fernando
core +1 more source
Charge Transport in Ternary Charge‐Transfer Solid Solution Single Crystals
Advanced Functional Materials, EarlyView.This study deconvolutes the roles of indirect (superexchange) and direct electronic coupling on charge transport in single crystals of an organic charge‐transfer molecular semiconductor (OSC). This model system elegantly demonstrates that structural defects introduced by chemical dopants play a significant role in the electronic performance ...
Jonathan C. Novak +7 more
wiley +1 more source
Managing a 401(k) Account: An Experiment on Asset Allocation [PDF]
The study reports the results of an asset allocation experiment in which subjects managed an endowment of money over a 20 "year" time period. While grounded in theory, the study takes an applied look at the ability of subjects to efficiently and ...
Federico Guerrero, James Sundali
core
Block Copolymers: Emerging Building Blocks for Additive Manufacturing
Advanced Functional Materials, EarlyView.This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson +3 more
wiley +1 more source
Determining the Efficiency Frontier [PDF]
Theoretical and Applied Economics, 2008 This article tries to answer an actual issue inducted by the title portfolio management. How do we combine the risky assets with the ones without risk, which are the portfolios selection criteria, which are their performances and the choices of the rational investor.
openaire +2 more sources
Foreign direct investment. A bid for progress? [PDF]
Foreign Direct Investment (FDI) is not a unique explanation for growth and progress, but is one of the more useful indicators of the open opportunities. It reveals preferences of the developed countries’ private sector, while the emerging economies seem ...
Antón Rodríguez, Martín +1 more
core +1 more source
Advanced Functional Materials, EarlyView.The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl +20 more
wiley +1 more source
Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing
Advanced Functional Materials, EarlyView.A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis +11 more
wiley +1 more source
Risk, return and portfolio diversification in major painting markets: The application of conventional financial analysis to unconventional investments [PDF]
This paper examines risk, return and the prospects for portfolio diversification among major painting and financial markets over the period 1976-2001. The art markets examined are Contemporary Masters, French Impressionists, Modern European, 19th Century
Andrew C. Worthington, Helen Higgs
core