1. DEPARTMENT OF STATISTICS, UNIVERSITY OF OXFORD, United Kingdom and OXFORD-MAN INSTITUTE OF QUANTITATIVE FINANCE, UNIVERSITY OF OXFORD, United Kingdom
2. DEPARTMENT OF STATISTICS, UNIVERSITY OF OXFORD, United Kingdom and DEPARTMENT OF MATHEMATICS, UNIVERSITY OF OXFORD, United Kingdom
3. SCHOOL OF MATHEMATICAL SCIENCES, QUEEN MARY UNIVERSITY OF LONDON, United Kingdom and DEPARTMENT OF MATHEMATICS AND STATISTICS, MEMORIAL UNIVERSITY OF NEWFOUNDLAND, Canada
4. OXFORD-MAN INSTITUTE OF QUANTITATIVE FINANCE, UNIVERSITY OF OXFORD, UK and DEPARTMENT OF ENGINEERING, UNIVERSITY OF OXFORD, United Kingdom