advantages and disadvantages of ADR(alternative dispute resolution) over litigation in international business

4000 words with oscola referencing system. the full question is:
International business litigation has traditionally been regarded as expensive, slow and inflexible as a method of resolving disputes. the Civil procedure Rules 1998 require the court to encourage the parties to use an alternative dispute resolution(ADR) procedure if the court considers it appropriate. what advantages does ADR provide over litigation in the context of international business litigation?

Masters level