93 For the use of “best efforts” in negotiations as an unenforceable “agreement agreement”, cf. Shaker  EWHC 1329, para. . For the judicial construction of enforceable agreements to “apply the best efforts” in negotiations, see Walford  2 A.C. 128, at p. 138 (Lord Ackner). for “best endeavours”, see Multiplex Constructions (UK) Ltd v. Cleveland Bridge UK Ltd EWHC 1341 (TCC), 107 Con. R.S. 1; Watford Electronics Ltd v Sanderson Ltd  EWCA Civ 317; 2001 1 All E.R. (Comm) 696 at ; Little v Courage, 1995 L.C.C. 164 at ; Peel, “The Status of Agreements,” pp.
40-42. For “reasonable efforts”, see Queensland Electricity Generating Board v. New Hope Collieries Pty Ltd 1 Lloyd`s Rep. 205, 205, 210. For “best efforts” in negotiation, see United Group Rail  NSWCA 177, (2009) 74 N.S.W.L.R. 618. The use of the word “option”, that is, a right, unlike an obligation to provide services, did not help the applicant, as it is still too uncertain to be applied. The Court of Appeal also held that the word “reasonably” was used to impose how the parties must reach an agreement, not to compel them to agree on a reasonable period of time. Moreover, the factors identified by the applicant as aid to the Tribunal in the assessment of the period were economic factors which the parties, and not the Court, had to take into account in their negotiations.
Therefore, even if the duration had obliged the parties to agree on an appropriate extension, this would still not have been applicable in the absence of an objective measure within the CSV (or at the completion of the initial period) that would define the extension period. In January 2016, the Court of Appeal again asked to what extent an agreement in Hughes v Pendragon Sabre Limited (t/a Porsche Centre Bolton) 2016 EWCA Civ 18 was applicable. There is no “single concept” to rely on, since the courts will make their decision on applicability on the basis of their interpretation of the agreement as a whole. However, if a time limit gives the parties the opportunity to agree or not to agree at a future date, reasonable or not, the parties should expect the courts to impose only a slow time. . . .
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