The study of marketing processes, activities, institutions, and results from a broad perspective such as a nation, in which cultural, political, and social, as well as economic interaction are investigated. It is marketing in a larger context than any one firm.
Primary instrument. A primary instrument is a scientific instrument, which by its physical characteristics is accurate and is not calibrated against anything else. A primary instrument must be able to be exactly duplicated anywhere, anytime with identical results. Pressure.
Primary sources are characterized by their content, regardless of whether they are available in original format, in microfilm/microfiche, in digital format, or in published format. Definitions. Primary Sources are the first hand evidence left behind by participants or observers at the time of events. Secondary Sources are materials that digest, analyze, evaluate and interpret information contained within primary sources or other secondary sources. Autobiographies, memoirs, diaries, emails, oral histories.