2 of the Economics glossary’s terms, each with the part of the syllabus where you first meet it.
The pattern in which a current account balance first worsens after a depreciation or devaluation, because demand for exports and imports is price inelastic in the short run, and then improves as demand becomes more elastic.
The situation where producing one good automatically produces another, such as beef and leather, so that a rise in the supply of one increases the supply of the other.