Some of the vocabulary differences stem from different social and political conditions, which gave rise to concepts that were not shared between the mainland and Taiwan, e.g. fúcǎi, a common abbreviation for the China Welfare Lottery of the People's Republic of China, or shíbāpā, which refers to the 18% preferential interest rate on civil servants' pension funds in Taiwan. ( pā as "percent" is also unique to Guoyu.)
