RDP 2018-09: Identifying Repo Market Microstructure from Securities Transactions Data Equation (1)

\overset{0 / 1 m a t r i x}{\overset{︷}{(\begin{matrix} 0 & 0 & 0 \\ 1 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 1 \\ 0 & 1 & 1 \\ 1 & 1 & 1 \end{matrix})}} \overset{c a n d i d a t e v e c t o r F V s}{\overset{︷}{(\begin{matrix} - 25 \\ - 30 \\ 80 \end{matrix})}} = \overset{s u b s e t s u m s}{\overset{︷}{(\begin{matrix} 0 \\ - 25 \\ - 30 \\ - 55 \\ 80 \\ 55 \\ 50 \\ 25 \end{matrix})}}