Answer:
horizontal alliances
Explanation:
A horizontal alliance is a term that describes a form of arrangements or partnership between businesses that conduct as competitors in the exact area.
In other words, competitors work in unison to enhance their strategy in the market.
On the other hand, Tacit Collusion occurs when firms avoid actions that are likely to require or demand a response from another firm often a competitor. For example, when a firm avoids the opportunity to price cut an opposition due to the fact that, the opposition may retaliate
Hence, Tacit collusion is more likely to be a concern with HORIZONTAL ALLIANCE
