<Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2010) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2010) (Learn how and when to remove this template message) </Td> </Tr> <P> Given the array of duties public administrators find themselves performing, the professional administrator might refer to a theoretical framework from which he or she might work . Indeed, many public and private administrative scholars have devised and modified decision - making models . </P> <P> In 1971, Professor William Niskanen proposed a rational choice variation which he called the "budget - maximizing model". He claimed that rational bureaucrats will universally seek to increase the budgets of their units (to enhance their stature), thereby contributing to state growth and increased public expenditure . Niskanen served on President Reagan's Council of Economic Advisors; his model underpinned what has been touted as curtailed public spending and increased privatization . However, budgeted expenditures and the growing deficit during the Reagan administration is evidence of a different reality . A range of pluralist authors have critiqued Niskanen's universalist approach . These scholars have argued that officials tend also to be motivated by considerations of the public interest . </P>

Public administration is both an art and science