This document discusses different types of public and corporate expenditures. It defines expenditure as funds raised to acquire or upgrade productive assets, while an expense is an economic cost incurred to earn revenue. Expenditure includes capital expenditure (CAPEX) for buildings and equipment, as well as operating expenses (OPEX) like wages and bills. For corporations, CAPEX is a one-time procurement financed long-term, while OPEX is repetitive short-term costs and non-operating expenses (NOPEX) are occasional medium-term costs. Expenditures are reported on a balance sheet or cash flow statement, while expenses affect the profit and loss statement.