This textbook written by Dr. Eric J Heller at Harvard was compiled after teaching a core class on this subject for years. Mathematics isn't the primary language used (it could be); the author chooses plain English, and as much mathematics as necessary to convey essential concepts.
I found the book in an unusual way, while reading a Wikipedia article about the author's father, economist Walter Heller.
— Nov 26, 2017 03:27AM
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