You can get a bunch of Jessop’s papers online here:

http://www.lancs.ac.uk/fass/sociology/research/resalph.htm#ik

He introduces ’strategic selectivity’ in his 1990 book State Theory: Putting capitalist states in their place. You can get a basic overview in this paper:

http://www.lancs.ac.uk/fass/sociology/papers/jessop-institutional-(re)turns.pdf

According to the CEPA History of Economic Thought site, ‘marginal efficiency of investment’ was what Abba Lerner rechristened Keynes’s ‘marginal efficiency of capital’, and it’s the name that stuck:

http://homepage.newschool.edu/het//essays/capital/keynesreturn.htm

Tinbergen had political interests associated with his left wing views. At university he founded a club for social democratic students and also founded a student newspaper. In fact some of Tinbergen’s first publications were articles he wrote for the socialist newspaper Het Volk in which he examined the effects of the economic depression of 1920-22 on unemployment and how the lives of the poor had been affected.
After completing his undergraduate degree at Leiden, Tinbergen continued to study at Leiden for his doctorate under Ehrenfest’s supervision. His thesis combined mathematics, physics and economics. In the introduction Tinbergen thanks Ehrenfest for pointing out to him a topic which could allow him to combine mathematical theories with his political interests. The main part of the thesis is mathematical, studying minimisation problems. Then he gives two appendices, one describing applications of the mathematics to physics, the second appendix giving applications to economics. Tinbergen submitted his dissertation in 1929.
Tinbergen’s political views meant that he was unwilling to do military service. He was fortunate in that, only a few years earlier in 1923, legislation had been passed in the Netherlands allowing conscientious objectors to avoid military service. The legislation required that a conscientious objector do government service so Tinbergen joined the Dutch government’s Central Bureau of Statistics.
From 1929 to 1945 he worked as a statistician with the Bureau of Statistics. His work on economics in his doctorate had been entirely theoretical, but now he had access to large amounts of data on which to test and develop theories.
From 1933 to 1973 he was professor of economics at The Netherlands School of Economics, Rotterdam. He was appointed to the board of the scientific bureaux of the Dutch Labour Party and he co-authored the Labour Plan in 1935. This plan was based on Tinbergen’s mathematically based principles of economics.
In the late 1930s Tinbergen worked as a scientific advisor for the League of Nations. Then, in 1945, he was appointed as director of the Dutch Central Planning Bureau.