Are the concepts of demand for domestic goods and domestic demand for goods the same?
No, the concepts of demand for domestic goods and domestic demand for goods are not the same.
Domestic demand for goods refers to the demand by domestic residents for goods, which includes both goods produced domestically and goods produced abroad (imports). It is represented as C + I + G. Imports (M) constitute that part of domestic demand that falls on foreign goods and services.
Demand for domestic goods refers to the total demand for goods produced within the domestic economy, which comes from both domestic sources and foreign sources. It is calculated as C + I + G + X - M, where exports (X) represent demand from abroad for domestic goods. Thus, demand for domestic goods equals domestic demand for goods minus imports plus exports.
Explanation
The textbook explicitly states that 'we need to distinguish between domestic demand for goods and the demand for domestic goods' in an open economy. The key difference lies in how imports and exports are treated. Domestic demand for goods (C + I + G) includes demand for foreign goods (imports), while demand for domestic goods (C + I + G + X - M) excludes imports and includes exports as an additional source of demand from abroad.