We analyze a panel data set that contains annual information of a sample of the world's biggest 20 pharmaceutical companies between 2000 and 2008, namely Abbot, Amgen, Astellas, AstraZeneca, Baxter, Bayer, BristolMyersSquibb, Eisai, Eli Lilly, GlaxoSmithKline, Johnson & Johnson, Merck, Novartis, Novo Nordisk, Pfizer, Roche, Sanofi-Aventis, Schering-Plough, Takeda, and Wyeth.
To get a handle on the conservation status of the world's flora, scientists at Kew worked with colleagues at the IUCN and the Natural History Museum in London to assemble information on a sample of known species.
On Aug. 18 a federal magistrate judge, Frank Maas, ordered the city to provide the group with information about a sample of the searches, to determine whether they were frequent enough to be effective.
A surveying was carried out with a structured questionnaire to gather career information from a sample of top managers (n = 633) working in 114 hotels.
Using detailed information on a sample of triadic patents, with over 1900 responses in the US, we report on the rates of collaboration of various forms, and test the effects of collaboration.
In a randomized trial, virtual humans used one of three voice types (classic and modern text-to-speech engines, as well as human voice) to present information to a sample of participants from an online population.
In this situation, conventional methods correct for regression to the mean by considering that the site is taken from a population of comparable sites and extracting complementary information from a sample of such sites3.
Taking all of these restrictions into account and omitting observations with missing information yields a sample of 66,779 observations for individuals aged 16 to 65 years old: 28,813 females and 31,580 males.
The ACS is a yearly version of the U.S. Census which gathers housing and economic information from a sample of households across the nation.
