The Household Income and Expenditure Survey (HIES) is a field operation which consists of collecting information in the households based on face to face interview.
The questions asked to the households are related to living standard conditions, expenditures, purchases, incomes.... It is the only survey conducted at a national level which deals with households habits in terms of expenditure and income. As the private and public sector, households represent an economic and social actor of the country which needed to be known.
To date, few quantitative assessments of the marine resources of Palau have been conducted. For the off-shore tuna fishery, reasonable data time-series are available for the foreign access tuna fishery, but data for domestically based tuna operations are incomplete. For the near-shore fishery, reef resources are exploited by subsistence, commercial and recreational fishermen. Very few data are available that document trends in production for most reef-resident and reef-associated fisheries resources in Palau, except for the trochus fishery.