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ENG101 : College Writing (Nadeau): Home


Welcome to the Research Guide for ENG101, College Writing.  Please use this guide to find resources for your Causal Analysis.  Please contact myself or any BCC Librarian if you have any questions.

What are trends?

According to the International Encyclopedia of the Social Sciences, a trend is a relatively smooth and unidirectional pattern in data that arises from the accumulation of information over time. Many of the time series in economics and in other social sciences exhibit a smooth (upward or downward) tendency.

In developed economies, the macro-socio-economic time series, such as gross national product, consumption, income, and population, are characterized by an upward trend. Though in the short run the economy goes through expansions and recessions, in the long run there is growth. This is due to technological progress and/or population growth. The trend arises from the accumulation of socioeconomic activity from one period to the next.

For instance, the time series of the U.S. population has an upward trend over time because the number of births exceeds the number of deaths and/or because the number of immigrants exceeds the number of emigrants.

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