Watford v Miles
Ratio: An agreement to negotiate is not recognised as an enforceable contract as it lacks the necessary certainty
Major reason why is - a duty to negotiate in good faith is unworkable and uncertain
However - lock out agreements can be enforceable provided that there is a specified time period and good consideration
Facts: 1st Ds and 1st plaintiff orally agreed to deal exclusively
The Ds then started negotiating with someone else
RTS Flexible Systems Ltd v Molkerei Alois Muller
Ratio: the parties do not need to have agreed every detail of their agreement but must have agreed the terms that the law requires as essential for the formation of legally binding agreements
Therefore an agreement is not incomplete merely because it calls for some further agreement between the parties
Facts: Issue arising terms of the contract whether they were intending to be bound by those terms in installing machines for D