in policy, are rare and quickly removed. Two aspects of monetary policy have proven to be particularly sensitive, and the BIS, therefore, has two specific goals: to regulate capital adequacy and make reserve requirements transparent. Regulates capital adequacy Capital adequacy policy applies to equity and capital assets. These can be overvalued in many circumstances because they do not always reflect current market conditions or adequately assess the risk of every trading position. Accordingly, the Basel standards require the capital/asset ratio of internationally active commercial banks to be above a prescribed minimum international standard, to improve the resilience of the banking sector. The main role of the Basel Committee on Banking Supervision, hosted by the BIS, is setting capital adequacy requirements. From an international point of view, ensuring capital adequacy is key for central banks, as speculative lending based on inadequate underlying capital and widely varying liability rules cause economic crises as "bad money drives out good" (Gresham's Law). Encourages reserve transparency Reserve policy is also important, especially to consumers and the domestic economy. To ensure liquidity and limit liability to the larger economy, banks cannot create money in specific industries or regions without limit. To make bank depositing and borrowing safer for customers and reduce the risk of bank runs, banks are required to set aside or "reserve". Reserve policy is harder to standardize, as it depends on local conditions and is often fine-tuned to make industry-specific or region-specific changes, especially within large developing nations. For instance, the People's Bank of China requires urban banks to hold 7% reserves while letting rural banks continue to hold only 6%, and simultaneously telling all banks that reserve requirements on certain overheated industries would rise sharply or penalties would be laid if investments in them did not stop completely. The PBoC is thus unusual in acting as a national bank, focused on the country and not on the currency, but its desire to control asset inflation is increasingly shared among BIS members who fear "bubbles", and among exporting countries that find it difficult to manage the diverse requirements of the domestic economy, especially rural agriculture, and an export economy, especially in manufactured goods. Effectively, the PBoC sets different reserve levels for domestic and export styles of development. Historically, the United States also did this, by dividing federal monetary management into nine regions, in which the less-developed western United States had looser policies. For