ZHANG, Ruda January 18, 2020:  Convert math-text words to text only when the math symbols are ASCII only. [e4c945c]
ZHANG, Ruda April 24, 2019:  Try <object> tag for SVG rendering [13bdcb7]
ZHANG, Ruda February 24, 2019:  Replace superscript * to ∗ [d60bd7f]
ZHANG, Ruda February 19, 2019:  Reflow text. [b46257b]
ZHANG, Ruda December 30, 2018:  Use dollar style math markup. [1b7036c]
ZHANG, Ruda September 30, 2018:  CSS redesign; more edits. [dd44d96]
ZHANG, Ruda February 13, 2018:  Define private/public goods; more on mechanism design. [00c0a3b]
ZHANG, Ruda January 13, 2018:  Minor fixes to convex programming, convex games, and mechanism design. [0325ccd]
ZHANG, Ruda October 23, 2017:  Acknowledge the fundamental role of rationality in soical phenomena [16a18d6]
Ruda Zhang August 19, 2017:  Correct isolines of marginal productivity [17364f8]
Ruda Zhang June 05, 2017:  Finish reading Cheung1969 [b043019]
Ruda Zhang June 02, 2017:  More on tenancy game [1ef4393]
Ruda Zhang May 31, 2017:  Notes on mechanism design and economics. [dbec6fd]
Ruda Zhang May 25, 2017:  Format EconExp; more on mechanism design. [c28b54a]
Ruda Zhang May 10, 2017:  On efficiency and fixed-point theorem. [d2cae4c]
Ruda Zhang May 09, 2017:  Market/competitive equilibrium; restructure game theory [9952e17]
Ruda Zhang May 08, 2017:  More axiomatic mathematical economics. [1dc38bc]
Ruda Zhang May 08, 2017:  Add illustration of trade equilibria [8e04068]
Ruda Zhang May 08, 2017:  More axiomatic mathematical economics. [f47cf15]
Ruda Zhang May 08, 2017:  Add illustration of trade in goods spaces [ace88ce]
Ruda Zhang May 07, 2017:  Axiomatic mathematical economics. [083e8f4]
Ruda Zhang May 07, 2017:  More on Duality [0725332]
Ruda Zhang May 07, 2017:  Translate econ notes [9741848]
Ruda Zhang May 04, 2017:  Restructure econ notes [39e3490]
Ruda Zhang May 04, 2017:  Correct quotation of "Coase theorem". [10639d3]
Ruda Zhang May 04, 2017:  Add newlines to Chinese full stop. [d4945fa]
Ruda Zhang May 03, 2017:  Formalize economics concepts. [a98c135]
Ruda Zhang April 28, 2017:  Correct terminology: perfect competition [8b4b756]
Ruda Zhang March 30, 2017:  Correct economics terminology [3302fbb]
Ruda Zhang March 27, 2017:  Add math form of principle of maximum work [15aae81]