According to the International Bar Association (IBA), states have won a higher percentage of ISDS cases than investors, and that around one-third of all cases end in settlement. Claimant investors, when successful, recover on average less than half of the amounts claimed. IBA notes that "only 8 per cent of ISDS proceedings are commenced by very large multinational corporations." IBA challenges the notion that ISDS is biased against developing countries, noting that there is "no correlation between the success rates of claims against states and their income levels or development status." IBA notes that ISDS is necessary even in countries with sophisticated domestic legal systems because those domestic courts rule according to domestic laws, not international law. IBA notes that "increasingly, awards require the losing party to pay arbitration costs and legal fees to the winning party", which deters investors from initiating unmeritorious cases.