SAKAI, Yasuyuki.
 Sales Maximisation and Tacit Collusion under Multimarket Contact:  A Model-Based Analysis.
<strong>IJBTSR International Journal of Business and Technology Studies and Research</strong>, [S.l.], v. 8, n. 2, p. 10 pages, oct. 2026.
ISSN 2665-7716.
Available at: &lt;<a href="https://ijbtsr.org/index.php/IJBTSR/article/view/163" target="_new">https://ijbtsr.org/index.php/IJBTSR/article/view/163</a>&gt;. Date accessed: 09 oct. 2026.
doi: <a href="https://doi.org/10.5281/zenodo.23239836">https://doi.org/10.5281/zenodo.23239836</a>.