PopulationModellingPurpose – The purpose of this paper is to apply grey system theory to population system and project China's population. Design/methodology/approach – The paper applies the GM(1,1) model to China's population projections. Two key aspects of the method are crucial for ...
The population has a significant influence on economic growth, energy consumption, and climate change. Many scholars and organizations have published projections for China's future population due to its substantial population amounts. However, these projections have not been evaluated or analyzed, which ...
The projections ran parallel to forecasts by the United Nations, the World Bank and other prominent national institutes. A UN study in June said the global population would swell to 9.6 billion in 2050 and the number of people aged 60 and above would catapult from 841 million now to two bil...
Gridded population projections consistent with the shared socioeconomic pathways (SSPs) are critical for the studies of climate change impacts and their mitigation. Existing gridded population projections under the SSPs have relatively coarse resolution and issue of overestimation in populated areas, which...
aMiss Vivian[translate] aThe large range of total population projections for China is a fundamental problem 总人口投射的大范围为中国是一个根本问题[translate]
Recently available data confirm reports of a Chinese population of almost a billion, with a very low death rate and a birth rate that has been halved in fifteen years. Illustrative projections of the demographic implications of different trajectories of future fertility demonstrate that a cessation ...
In 2020, around 17.8 percent of China's population was over 60 years old, and projections estimate that it will increase to over 40 percent by 2060. As a result, senior consumers are becoming an increasingly crucial segment of China's economy and consumer market. Show more - Description ...
Population projections based on the ARIMA (2, 2, 2) model By using Eviews software, the population size of China is analyzed. The original population sequence was first tested for stabilization and unit root to determine the difference order d = 2. Then, the ARIMA model was identified ...
the next decades. In fact, the U.N. revised its population projection upward since its last report two years ago, mostly due to higher fertility projections in the countries with the most children per women. The previous projection had the global population reaching 9.3 billion people in 2050...
Projections Based on Fertility Rate China's 2017 fertility rate is estimated to be 1.6, which means that, on average, each woman gives birth to 1.6 children throughout her life. The necessary total fertility rate for a stable population is 2.1; nonetheless, China's population is expected to ...