Thailand’s national accounts include estimates of factor incomes only at the level of the
total economy; and because the number of self-employed can equal or exceed the number of
employees, a means must be found to allocate the mixed income of the self-employed between
their labor and capital income components. The method used to make this adjustment has
differed widely and is responsible for most of the wide variation in the relative weights applied
to the indexes of growth in the factor inputs.