| time and motion studies | The observation and analysis of movements in a task with an emphasis on the amount of time required to perform the task. (12 Dec 1998) |
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| models, economic | Statistical models of the production, distribution, and consumption of goods and services, as well as of financial considerations. For the application of statistics to the testing and quantifying of economic theories models, econometric is available. (12 Dec 1998) |
| socio-economic | Relating to social or economic factors or to a combination of both social and economic factors. (05 Dec 1998) |
| inflation, economic | An increase in the volume of money and credit relative to available goods resulting in a substantial and continuing rise in the general price level. (12 Dec 1998) |
| economic botany | <study> The study of plants and plant products that can be used for profit, such as in the field of agriculture or medicine. (13 Nov 1997) |
| economic coefficient | In growth and cultivation of microorganisms, the ratio of the mass produced to the substrate consumed. (05 Mar 2000) |
| economic competition | The effort of two or more parties to secure the business of a third party by offering, usually under fair or equitable rules of business practice, the most favourable terms. (12 Dec 1998) |
| economic entomology | <study> The study of insects which are able to cause economic losses by destroying plants or animals that are commercially valuable. (09 Oct 1997) |
| economic sector | A subdivision of economic activities based on major purpose (for example, "commercial sector" or "private sector"). (05 Dec 1998) |
| economic value of life | The evaluation of the monetary value of a life lost or a life saved. (12 Dec 1998) |
| united states office of economic opportunity | A division of the executive branch of the united states government concerned with overall planning, promoting, and administering programs relative to the provision of opportunities for economic advancement. (12 Dec 1998) |
| retrospective studies | Studies used to test aetiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. (12 Dec 1998) |
| pharmalogical studies | <pharmacology> Studies to assess the potential harmful or other effects of drugs (16 Dec 1997) |
| clinical studies | <pharmacology> Human studies that are designed to measure the safety, efficacy, and appropriate dosage of a new drug or biological. Clinical studies routinely involve the use of a placebo group that is given an inactive substance that looks like the test product. (14 Nov 1997) |
| cohort studies | Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesised to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics. (12 Dec 1998) |