Since 2000, China has faced ageing population, and the population of “baby boomers” born in the 1950s entered the old age period in turn, forming an increase in the elderly population peak. At the end of 2016, the population aged 60 and over reached 230 million (16.7% of the total population), of which the population aged 65 and over reached 150 million (10.8% of the total population). But according the 6th national population census in China it showed that the number of people aged 60 and over reached just 13.26% of the total population. In the short six years, the population aged over 60 rose 3.44 percentage points. Compared with the sixth census, the population aged 65 and above also increased by 1.93 percentage points1.
In addition, in addition, family planning policies that began in the 1970s produced lower fertility rates. With the improvement of living standards, elderly live longer. The data released in 2017 for the Chinese people’ s average life expectancy is 76.34 years old, 73.64 for men and 79.43 for women. The average life expectancy of Chinese people has increased by 1.51 and 3.39 years respectively compared with that in the past five years and ten years ago2. The two key factors of the family planning policy and the extension of the average life expectancy have contributed to the change in the age structure of our population. Among them, the issue of aging is particularly prominent. China and almost all developed countries in the world and many emerging market countries have experienced or are experiencing an aging population. China is the most populous country in the world, and the elderly population is also the largest in the world. At present, China is undergoing a transformation of its social structure, the need for comprehensive deepening of reforms and the building of a comprehensive society to become a well-off society. At the same time, economic growth has entered a new normal and the population is aging  .
In this context, the life of the elderly has become a widespread concern of the society. As an important aspect of the lives of the elderly, different living arrangements will affect the quality of elderly lives.
Researches on living arrangements and the quality of elderly lives are mainly life satisfaction and health. Some scholars believe that living with children has a positive effect on the elderly      . But other scholars believe that living with children has an opposite effect on the quality of elderly life, living with children reduces the mental health of the elderly    and increases the degree of depression. Living with their children will also decline the cognitive level of elderly  .
The impact of different living arrangements on the lives of the elderly has not yet reached a unified conclusion. Under the background of the increasingly severe ageing of China, there is great significance to analyze the impact of different living patterns on the lives of the elderly. This article examines one aspect of the quality of life―the degree of depression, and examines the degree of depression in older people under different living arrangements and gives suggestions for improving the quality of lives of the elderly.
2. Data, Variables, and Model
2.1. Data, Variables
The data used in this paper comes from the China Health and Retirement Longitudinal Study  , which uses data from both the 2013 and 2015 national follow-up surveys. Since the study of this paper is about the relationship between the living arrangements of depression of the elderly, we excluded the sample of respondents aged below 60. In addition, previous literature has shown that the living habits and lifestyles of the elderly are greatly different because of age. Therefore, the article selected samples that were older than 80 years old. In addition, some statistical information on living information is missing and some samples with missing the information are excluded.
The Depression Scale is one of the scales that reflects people’s mental state in reverse and is considered to have sufficient reliability and validity  .
The dependent variable of this article is depression. The independent variable is living arrangements. According to the questionnaire3, we divide living arrangement into four different aspects: 1) Co-residence, if the respondents live with at least one of the children. In this paper, we set Co-residence as the control group. 2) Near-residence, if the respondents live alone but with at least one of the children in the same or adjacent dwelling or courtyard only. 3) Neighborhood-residence, if the respondents live alone but with at least one of the children in another household in their permanent address’s village or neighborhood only. 4) In-city-residence, if the respondents live alone but with at least one of the children in another village or neighborhood only. 5) Out-city-residence, if the respondents live alone but with at least one of the children in another city only.
Previous literature studies have shown that individual characteristics such as age, gender, marital status, household registration, education, number of alive children, number of deceased children, and other factors such as income, housing, assets, self-care ability, and other factors all affect the life satisfaction of elderly      . For example, Kim and Moen (2001)  believes that in addition to health and income are important factors affecting the well-being of older people, participation in social activities.So we add these as control variables. We take logarithm of income and assets. All variables can details in the Table 1.
2.2. Model Settings
2.2.1. Pooled Regression
Pooled Regression assumes that all individuals have exactly the same regression Equation  :
Among them, do not include constant items. It is called mixed regression, because all the two periods of data can be put together, and the OLS regression can be performed like cross-sectional data.
2.2.2. Two-Way FE Model
Considering that the sample is panel data, the Two-way FE model is used to control the influence of time and regional factors on the estimation results. The fixed-time effect can solve the problem of missing variables that do not change with the individual but change over time. Regional fixed effects are mainly controlled to the provinces, which can solve the missing variables that do not change with time and with the region. Two-way fixing can solve the above two problems at the same time. Assuming the model is  :
Table 1. Detail of variables.
In this equation, and are unobservable variables at the time and regional level, respectively. We let and , we get
So, we can think as a unique period intercept and interpret it as the effect of period t on the interpretation of y. we can think as a unique period intercept and interpret it as the effect of “provincial” effect.
3. Analysis of Data
3.1. Description Statistical of Data
3.1.1. Dependent Variable
From the statistical results in Table 2, the average depression of Co-residence was 18.57, and the average depression level of In-city-residence was 17.76. Just from the statistical results, we find that living apart from children reduced the
Table 2. Statistical description of depression.
degree of elderly depression, and the farther away elderly live, the more obvious the effect will be.
3.1.2. Independent Variables
The majority living arrangement of the elderly is Co-residence in the sample. It is a slightly higher proportion in 2015 than 2013 and has 14,412 samples in two years, accounting for 43.13%. Near-residence ratio is not high, has 1037 samples, accounting for 7.2%; Neighborhood-residence has 3220 samples, account for 22.34%. In-city-residence has 2595 samples, accounting for 18.01%. Out-city-residence has 1344 samples, accounting for 9.33%. As shown in Table 3.
3.1.3. Control Variables
There are a total of 14,412 samples that meet the requirements. Some of the variables are missing. The average age of the sample was 66.99 years old; among the gender, men accounted for 49.9%, which was lower 0.2% than women; most of them were rural households, and only 39.9% were from urban households. The details are shown in Table 4.
3.2. Empirical Analysis
This section mainly analyzes the depression of the elderly between different living arrangements. In the basic model 1), we find that compared with the baseline group, Near-residence and Neighborhood-residence can reduce the depression of the elderly. In model 2), we add control variables and found that the results are similar to model 1). After controlling time and province, the coefficient becomes smaller but the result is still robust. Through the three models, we believe that the elderly and children living in close quarters, communities, or villages can significantly reduce the degree of depression, and the neighboring residents have the best effect (Table 5).
4. Conclusion and Suggestion
Rapid economic growth, demographic ageing and changing family preferences in China have altered the traditional living arrangements of older adults, possibly intergenerational relations and compromising their wellbeing. This paper
Table 3. Statistical description of living arrangements.
Table 4. Statistical description of control variables.
selects the CHARLS survey data to examine the effect of residential patterns of people over the age of 60 and less than 80 years old on depression in China. My study is important because very little research has looked at this issue in the extant literature.
The conclusions drawn are: 1) Different living patterns will affect the degree of depression in the elderly. The mode of influence is mainly achieved through the sense of happiness of the elderly. 2) Through different models, the results we obtained are more robust. Therefore, the conclusion of this paper is that the sharing of the elderly and children does not necessarily improve their life satisfaction. 3) We also have other discoveries. First, age can increases depressions, in other words, the older people are, the more depressed people are. Second, there is a gender difference in the degree of depression. Women are more depressed than Men. We also can see that the higher the degree and more assets people have the less depressed.
Table 5. Empirical analysis.
Notes: 1) Standard errors in parentheses *p < 0.1, **p < 0.05, ***p < 0.01. 2) Due to article length limit, we do not report results of constant items in sheet.
In response to our conclusions, the policy suggestions given are: First, adult children live together with the elderly and have always thought that they are considered to be examples of old-style support. However, with the development and progress of society, the lifestyle of the elderly has long since changed. Living with children does not necessarily make the elderly happier. Therefore, we believe that we should give the elderly their own living space. For children, it is not a reflection of filial piety to arrange for the elderly to live with them. Children should be given more greetings, more contacts and more visits. Second, there are many factors affect the degree of elderly depression, like age and Hukou, so we should give more care to older people and people who live in rural of China.
This article still has many shortcomings. First the research in this article is from the perspective of the elderly. The information contained in the children does not contain the effect of controlling children’s characteristics on the degree of depression in the elderly. In addition, this article does not consider the elderly own preference for living. Second, the study of this paper shows that residential arrangements will affect the degree of depression of the elderly, but do not know how living arrangements affect the elderly depression. Therefore, in the following studies, children’s factors and old people’s living preferences can be considered. And we should find out how living arrangements affect the elderly depression then we can really solve the elderly depression.
Thanks to my teachers, classmates and friends, thank you for your company and thank you for your encouragement. Thank you editor of the journal, thank you for your advice.
1National Bureau of Statistics of the People’ s Republic of China, 2016.
2China statistical yearbook 2017.
3China health and retirement longitudinal study follow-up questionnaire 2013 (2015).