Despite some empirical evidence to the contrary, government subsidies to higher education are usually presumed to be inequitable because college-educated workers earn more than less educated workers. Using a simple model of educational choice with endogenous wages and two worker types, I obtain strong results concerning this conflict between effi ciency and equity —namely that equity and effi c...

Materials and methods: In Experiment One, a total of 224 nursery pigs were used in a 28-day trial. Dietary treatments included a control (without ORG or antimicrobial), the control diet containing neomycin and oxytetracycline (154 mg per kg of each; NT), ORG, or both NT and ORG. In Experiment Two, the fi ve dietary treatments included the control, control diet plus NT, and control diet with ORG...

Stability is often the goal for clearinghouses in matching markets, such as those matching residents to hospitals, students to schools, etc. Stable outcomes absent transfers need not be utilitarian effi cient, suggesting the potential value of transfers. We study the wedge between stability and effi ciency in large one-to-one matching markets. We show stable matchings are effi cient asymptotica...

Colloidal quantum dots (QDs) offer greatly advantageous features including high emission effi ciency, [ 1,2 ] narrow emission linewidth, [ 3,4 ] tunable emission wavelength, [ 5,6 ] and low-cost solution-processing, [ 7 ] making them one of the most promising materials for lighting-emitting diodes (LEDs). Recently, current-driven quantum dot lighting-emitting diodes (QLEDs) have been intensivel...

Electoral agency models suggest that government effi ciency is better when voters penalize poor performance, and party competition is balanced. Uncertainty in the electoral mechanism dillutes the incentive to produce effi ciently. We test this proposition on panel data on local governments. The dataset includes a broad set of indicators on service output and quality, which facilitates the measu...

Th e electricity generating effi ciency is the energy in the net electricity generated divided by the energy in the fuel used to generate that electricity on an all-in basis. Higher effi ciency means less coal consumed and reduced emissions per unit of electricity. Th e chemical energy in the fuel can be expressed as either its Lower Heating Value (LHV) or its Higher Heating Value (HHV) [5]. In...

in the real world there are groups which composed of independent units. the conventional data envelopment analysis(dea) model treats groups as units, ignoring the operation of individual units within each group.the current paper, investigates parallel system network approach proposed by kao and modifies it. as modied kao' model is more eligible to recognize ecient groups, a new ranking m...

In solar cells, internal quantum effi ciency (IQE) is the ratio of the number of charge carriers extracted from the cell to the number of photons absorbed in the active layer. Because IQE measurements normalize the current generation effi ciency by the light absorption effi ciency, they separate electronic properties from optical properties and provide useful information about the electrical pr...

the main objective of this study was to investigate the effi ciency of biological treatmentof azo dye-containing wastewater with a sequencing batch reactor system, followed by ultrafi ltration.the performance of the system was quantifi ed by measuring the chemical oxygen demand and azo dyeconcentration. the biodegradation was carried out under combined alternating anaerobic and aerobiccondition...