Noncomputability, Unpredictability, Undecidability and Unsolvability in Economic & Finance Theories

We outline, briefly, the role that issues of the nexus between noncomputability and unpredictability, on the one hand, and between undecidability and un-solvability, on the other, have played in Computable Economics. The mathematical underpinnings of Computable Economics are provided by (classical) recursion theory, varieties of computable and constructive analysis and aspects of combinatorial optimization. The inspiration for this outline was provided by Professor Graca's thought-provoking recent article.