"Ernst Engel (/ˈɛŋɡəl/; German: [ˈɛŋəl]; March 26, 1821 – December 8, 1896) was a German statistician and economist, famous for the Engel curve and Engel's law." - (en.wikipedia.org 11.08.2021)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)
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