This feature allows us to use agents before and after the reform to control for macroeconomic effects and for unobserved heterogeneity among agents.
The main commercially useful methods for crosslinking use agents whose sole purpose is to promote free-radical processes that essentially initiate polyethylene degradation.
Some use agents called adjuvants, which can raise the immune system's response to a vaccine.
Hilton executives say the plan is not aimed against travel agents and that they will continue to use agents.
Journalists use agents as sources, agents use journalists to send messages to drug lords, narcos use journalists to publish threats.
Most buyers use agents; the two split a commission of 3 to 6 percent paid by the seller.
Investors in new-construction condominiums tend to use agents, Gavin Coombs, one of the city's top leasing brokers, said.
For two decades, arms companies have been forbidden to use agents in their efforts to peddle wares to the government; a ban they have routinely ignored.
Many institutions that use agents, including some small private religious colleges, are not well known; without recruiters, they have little hope of attracting students from around the world to diversify their campuses.
But those familiar with the flow of international students say that thousands, mostly from Asia, use agents to come to American institutions, particularly community colleges with intensive English programs.
Where buyers once shopped for cabins (or land for a cabin), most now look for homes suitable for year-round use, agents say, even if they plan to stay just part of the year.
