What types of conduct may amount to 'refusal to deal' in merger assessment?

There are various reason and differ form transaction to transaction. Tough negotiation by the acquirer mainly due to fact finding report. Regulatory issues . Post acquisition scenario and claim to be factor in Draft Share Purchase Agreement 

There are multiple reasons for the same:  To have more market share To have better cost efficiency removing duplicate common cost To have better negotiation terms with supplier       

Refusing  to deal describes a situation in which one firm refuses to sell to another firm, either because it is willing to sell only at a price that is considered too high (or non financial rational for the shareholders of the buying firm) , or is willing to sell only under conditions that are deemed unacceptable (i.e.: create monopolies or limited access to the market for big portion of the population or due to other regulation issues, etc...)