sum ^N_{i=1}p_{i}pi _{i}C_{i}=X end{aligned} (2 Since Tobin (1958), we know that, under the assumptions of the mean-variance model and in the absence of entry costs, investors will choose a combination of the safe asset and the portfolio of risky assets with the largest Sharpe ratio (the ratio of the average excess return to the standard deviation).
Samuel Su, China president for its American parent, Yum! Brands, says it has been successful because it offers the Chinese a rare combination of safe, tasty food in clean surroundings with American cachet, all at a reasonable price.For those who have to battle against local, often unfairly subsidised competition, success usually requires a dash of unorthodoxy.
Fearing a combination of a less safe network due to reduced staff at stations and more anti-social shifts for train drivers, a dispute is raging between unions and management.
With the significant increase in the atmospheric concentration of CO2, the interest for a combination of Enhanced Oil Recovery (EOR) and safe underground storage of CO2 in oil reservoirs has been increased.
The projects comprise a combination of peer education, promotion of safer sex behaviour, referral for treatment of STIs, provision or sales of condoms and creating an environment that facilitates behaviour change, for example working with community leaders and the police.
These findings suggest that further occupational hygiene progresses may result from a combination of efforts dealing with safer products presentation, improvements in facility ventilation equipment, and information of hairdresser, including young apprentices during their training, as to potential hazards in the workplace.
Making their way through a complicated system that included do-gooders and shady black-marketeers, they used a combination of paid escorts, pastors and safe houses.
In most cases, a combination of these signs allows a safe diagnosis of pneumothorax.
The former Everton man could have had a hat trick in the opening half but Chelsea held firm through a combination of last-gasp defending, the safe hands of Cech and some mixed finishing.
