Journal of Combinatorial Designs, Volume 27, Issue 4, p. 229-250, doi.org/10.1002/jcd.21642 Abstract We have performed a complete enumeration of nonisotopic triples of mutually orthogonal Latin rectangle. Here we will present a census of such triples, classified by various properties, including the order of the autotopism group of the triple. As part of this, we have also achieved the first enumeration of pairwise orthogonal triples of Youden rectangles. We have also studied orthogonal triples of rectangles which are formed by extending mutually orthogonal triples with nontrivial autotopisms one row at a time, and requiring that the autotopism group is nontrivial in each step. This class includes a triple coming from the projective plane of order 8. Here we find a remarkably symmetrical pair of triples of rectangles, formed by juxtaposing two selected copies of complete sets of mutually orthogonal Latin squares of order 4.

The following paper traces the emergence of a Swedish military-industrial complex through its heydays to its eventual decline,  to identify factors which distinguish the Swedish case. The paper argues

Globala katastrofer och existentiella risker. Intervju med Anders Sandberg

Kärnvapenkrig, pandemier, istider och robotar smartare än människan. Både naturen och vi själva kan försätta oss i situationer där mänskligt liv hotas på en större skala. Här intervjuas forskaren Ande

Pp. 183-202 in B. Kogut (Ed.) The small world of corporate governance. MIT Press.

Elements in Decision Theory and Philosophy, red. Martin Peterson. Cambridge University Press Abstract Suppose that you prefer A to B, B to C, and C to A. Your preferences violate Expected Utility Theory

Risk Analysis, https://doi.org/10.1111/risa.13445 Abstract According to the class of de minimis decision principles, risks can be ignored (or at least treated very differently from other risks) if the ri

The objective of this paper is to examine how employers’ non-wage costs for their workforce affect voluntary early retirement, using the case of the Swedish private sector. The results show that a 1 p

The present study explores data on transfers of gifts/economic support to relatives, and analyses these in relation to different kinds of income, education, age, time since migration, acquisition of c

This paper estimates cohort size effects on earning profiles and whether these are affected by an individual’s position in the Swedish Baby Boom and Baby Busts. Amongst other, it is found that higher

Alternative demographic scenarios for Sweden are used to illustrate how even very small variations in the assumptions of demographic projections lead to radically different future population structure