Thailand regularly issues visas on arrival to many non-exempt visitors at major ports of entry in order to encourage tourism. Indonesia, in recent years, has progressively liberalised its visa regime, no longer requiring visas or on-arrival visas from most nationals, while Singapore has signed visa waiver agreements with many countries in recent years and has introduced electronic visa facilities for Indians, Eastern Europeans, and mainland Chinese. This trend towards visa liberalisation in the Greater India region is part of the broader phenomenon of globalisation and has been linked to heightened economic growth.[129]