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Data Science Blog > R Visualization > Data Visualizing Economics and Mortality

Data Visualizing Economics and Mortality

James Lee
Posted on Oct 21, 2016
The skills the author demoed here can be learned through taking Data Science with Machine Learning bootcamp with NYC Data Science Academy.

Abstract:

Countries are economically different in various regions of the world.  The residents of wealthier countries are not only better off financially, but they also tend to live much longer.  How does the living conditions compare? What could be a possible reason for this? This project visualizes the economic conditions of different income regions and identifies how these situations compare over time.   The data on this project was found in the databases of World Bank and the World Health Organization.

Purpose:

During my study on Economics at New York University, I had seen a clip by Hans Rosling in which he showed a fantastic presentation relating income and life expectancy of 200 countries over the last 200 years.  The presentation was interesting in that it showed how the countries became wealthier and healthier at dynamic intervals.  The countries each had its setbacks from sudden disease outbreaks and political disturbances but nonetheless followed a positive trend overall.  As each country grew healthier with medical advancements, the countries began to grow wealthier.  What I wanted to see were the recent changes and possible explanations for them.

Data

I. How Does the World Look Now?

 

Data Visualizing Economics and Mortality

The GDP per Capita appears to vary widely after between the life expectancy of 70 to 80 years.  Most of the poorer nations seem to be from South Asia and Sub-Saharan Africa.  Interestingly there is a cluster formed within the longer living but still, poor regions found in the top left corner of the graph.  It appears as if there is a particular milestone that must be reached before such an expansion of income can occur.

Data Visualizing Economics and Mortality

World Bank's metadata was used to categorize nations into 4 different income groups.  After taking the logarithm of the Average GDP per Capita, the plot revealed a correlation between the Life Expectancy and GDP per Capita.

 

II. How do Income Gaps Differ?

Income Gaps were calculated using the GINI coefficient of various countries reported by World Bank.  A higher income gap or a high-income inequality is expected to relate to lower values in both Average Life Expectancy and Average GDP per Capita.

 

Data Visualizing Economics and Mortality

The first plot shows several interesting patterns.  There is a pattern in which a High-Income Gap (GINI >44.14) decreases from the Upper- Middle Income to Low-Income.  However, the Middle-High Income Gap (37.59<GINI<44.14) increases from the Upper-Middle Income to Low-Income.  This suggests that income grows increasingly concentrated among a select few as countries develop.

However, it also shows that there is a greater barrier to entry to wealth among poorer countries as the distinction between the wealthy and poor grows.  This is highlighted in the second plot where overall income gap separated into two levels (High = GINI>34) is shown.  While wealthier countries have an extreme concentration to the select few, the overall spread of wealth is more even than in the poorer countries.

III. What Causes Such as Life Expectancy?

death-income-2000

death-income-2012

 

 

 

 

 

 

 

 

Low-Income nations suffer from high rates of communicable or contagious diseases caused by bacteria, viruses, and other microorganisms.  Unfortunately, infectious diseases also affect the entire population regardless of age, and because of that, the residents face an earlier death.  The development of medicine, vaccines, and clean environment allow wealthier nations to avoid such illnesses.  The Low-Income regions are not without hope, however.  Over time, cases of communicable diseases are decreasing at a rapid pace, indicating better health and greater longevity.

 

lower-cause lower-middle-cause legendupper-middle-cause high-cause

 

As noted previously, communicable diseases such as infectious and parasitic diseases are much frequent in the Low Income Region than any other regions.  Fortunately, there is a definite decrease in such diseases over time everywhere.  However, cardiovascular diseases and malignant neoplasms rise over the years and as countries grow wealthier.  This appears to be a direct result of longevity.

 

gbcapy12

The benefit in the lower mortality from communicable diseases is evident.  In the year 2012, while all income groups saw a growth in both life expectancy and GDP per capita, it was especially more noticeable in the lower income groups which saw an adamant boost.

 

gdp-segregation

 

We see a stagnation in growth as countries develop.  For the Low-Income Regions, the points become highly segregated in time, but in the High-Income Regions, the points overlap mostly showing not a large degree of change.  There appears to be a decrease in the marginal rate of development as countries grow wealthier.

 

 

Conclusion:

There is a strong positive relationship between Life Expectancy and GDP per Capita.  Residents of countries with higher income typically not only earn more money but also, live longer.  Wealth appears to be more accumulated to the elites in higher income regions, but the real gap between rich and the poor is much evident in poorer countries.  Finally, mortality by communicable disease is a serious threat that affects low-income areas, but the conditions appear to grow better over time.

 

Next Steps:

In the future, this project would be updated in Shiny in which the data in between years can be shown to show a more fluid movement in time.  Other factors should be considered in visualizing the economic situation of the country such as the form of government, primary level of production or industry, and economic conditions on gender.

 

 

About Author

James Lee

James Lee is currently a Data Analyst at Facebook via Crystal Equation and a Masters in Data Science student at the University of Washington. He has a background in Economics and Mathematics from New York University, and has...
View all posts by James Lee >

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