I then project these CCRs/CCDs using ARIMA models as inputs into Leslie matrix population projection models and control the projections to the Shared Socioeconomic Pathways. I validate the methods using ex-post facto evaluations using data from 1969–2000 to project 2000–2015. My results are ...
The projections include: (1) uncontrolled age and gender projections; and (2) age and gender projections controlled to a projection of the population total by census tract. Mean Absolute Percent Error (MAPE) is used to evaluate precision and Mean Algebraic Percent Error (MALPE) is used to ...
population projection; spatial distribution of population; shared socioeconomic pathways; human-environment analysis; uncertainty1. Introduction Projections of the spatial distribution of population are consequential for integrated human-environment analysis. Population and its spatial distribution are drivers of ...
population, by race and Hispanic origin, in 2016 and a projection for 2060. As of 2016, about 17.79 percent of the U.S. population was of Hispanic origin. Race and ethnicity in the U.S. For decades, America was a melting pot of the racial and ethnical diversity of its population. ...
SCIENTIFIC DATA | 2:150045 | DOI: 10.1038/sdata.2015.45 2 www.nature.com/sdata/ Extract population counts from the most recent official population census, estimate, or projection Match the extracted population counts to their corresponding administrative units Calculate population density at the ...
4.1.2. Accuracy by Years into the Projection Results confirm there is a positive relationship between projections accuracy and years into projections. Figure 3 shows the percentage error (PE) for each year in the B Series ABS projections for the NT. Each column represents the percentage difference...
the cost of living usually has the highest priority. However, other factors such as medical care or political stability should also be taken into account,cost of living in the usais expensive considering the numerous factors of different countries in order to derive a ranking for the quality of...
Population policies for an overpopulated world Around the world today, overpopulation contributes significantly to unemployment, malnourishment, crowding, poverty, disease, and other harms afflicting hundreds of millions of people. In this century, it threatens billions with such suffering. Overpopulation ...
摘要: The authors assess the reliability and usefulness of regional population projections for Hungary covering the period 1986-2006. They point out the improvements and the shortcomings of the projections and then analyze the major trends indicated. (SUMMARY IN ENG AND RUS) (ANNOTATION)...
Extrapolating the rates in the CONAPO projection, Mexico’s population growth is expected to peak in 2053 at 137.6 million and then start to gradually decline. Of course, it is very difficult to accurately project emigration figures. If emigration is a third less than projected by CONAPO, ...