Thaksin was accused of "policy corruption", such as infrastructure and liberalisation policies that, while legal "...abuse the public's interest..." Supannee Chai-amporn and Sirinthip Arun-rue of the National Institute of Development Administration (NIDA) claimed that policy corruption caused the state to spend 5 to 30 percent more than it otherwise should have spent, costing the state an additional 400 billion baht. Thaksin critics point to more examples of corruption: the Thailand Board of Investment's (BOI) granting tax breaks worth a total of 16.4 billion baht to Shin Satellite for its iPSTAR project in 2003, and the Transport Ministry's decision the same year to abolish the minimum air fare of 3.8 baht per kilometre when Shin Corporation was about to consummate a joint venture with low-cost carrier AirAsia.