Frank P. Ramsey was a forerunner of subjective Bayesian decision theory in many respects, solving early optimization problems in growth, defending subjective probability, and giving probably the first Value of Information proof.
Due to how long ago he worked and his premature death, his papers are hard to find, so I spent some time going through Wikipedia & other sources, and obtaining copies of most of his corpus and other relevant papers:

Statistics/decision theory:

Ramsey 1922_{102ya}, “Mr Keynes on Probability [review of J. M. Keynes, A Treatise on Probability 1921_{103ya}]”

Ramsey 1926_{98ya}?/Ramsey 1990_{34ya}, “Weight or the Value of Knowledge”


Economics:

Ramsey 1927_{97ya}, “A Contribution to the Theory of Taxation”

Ramsey 1928_{96ya}, “A Mathematical Theory of Saving”

Keynes 1930_{94ya}, “F. P. Ramsey [obituary]”

Samuelson 1970_{54ya}, “What Makes for a Beautiful Problem in Science?”

Arrow 1980_{44ya}, “Book review: Foundations: Essays in Philosophy, Logic, Mathematics and Economics. F. P. Ramsey , D. H. Mellor”

Gaspard 2003_{21ya}, “Ramsey’s theory of National Saving: A Mathematician in Cambridge”

Duarte 2009_{15ya}, “Frank Ramsey’s Notes on Saving and Taxation”


Math:

Ramsey 1926_{98ya}, “The Foundations of Mathematics”

Ramsey 1930_{94ya}, “On A Problem of Formal Logic”

Ramsey 1931_{93ya}, “Foundations of Mathematics and other Logical Essays (International Library of Philosophy)”


Philosophy:

Ramsey 1923_{101ya}, “Review of Tractatus LogicoPhilosophicus by Ludwig Wittgenstein”

Ramsey 1925_{99ya}, “Universals”

Ramsey 1927_{97ya}, “Symposium: Facts and Propositions”

Mellor 1995_{29ya}, “Cambridge Philosophers I: F. P. Ramsey”


Psychology:

Forrester 2004_{20ya}, “Freud in Cambridge”


F. P. Ramsey: Philosophical Papers, ed. 1990