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Two-Component Disaggregation of ROE

Amazon.com Inc., decomposition of ROE

 
ROE = ROA × Leverage
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Return on Equity (ROE) over 2017 year is the decrease in profitability measured by Return on Assets (ROA).

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Three-Component Disaggregation of ROE

Amazon.com Inc., decomposition of ROE

 
ROE = Net Profit Margin × Asset Turnover × Leverage
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Return on Equity (ROE) over 2017 year is the decrease in efficiency measured by Asset Turnover.

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Five-Component Disaggregation of ROE

Amazon.com Inc., decomposition of ROE

 
ROE = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover × Leverage
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Return on Equity (ROE) over 2017 year is the decrease in operating profitability measured by EBIT Margin.

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Two-Way Decomposition of ROA

Amazon.com Inc., decomposition of ROA

 
ROA = Net Profit Margin × Asset Turnover
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Return on Assets (ROA) over 2017 year is the decrease in Asset Turnover.

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Four-Way Decomposition of ROA

Amazon.com Inc., decomposition of ROA

 
ROA = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Return on Assets (ROA) over 2017 year is the decrease in operating profitability measured by EBIT Margin.

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Decomposition of Net Profit Margin

Amazon.com Inc., decomposition of Net Profit Margin

 
Net Profit Margin = Tax Burden × Interest Burden × EBIT Margin
Dec 31, 2017 % %
Dec 31, 2016 % %
Dec 31, 2015 % %
Dec 31, 2014 % %
Dec 31, 2013 % %

Source: Based on data from Amazon.com Inc. Annual Reports

 

The primary reason for the decrease in Net Profit Margin over 2017 year is the decrease in operating profitability measured by EBIT Margin.

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