The document defines several basic economic terms: 1) Activity rate or participation rate refers to a country's labor force as a proportion of total population and can vary between countries based on factors like schooling, retirement ages, and opportunities. 2) An agricultural laborer works on another's land for wages in money or kind and has no ownership rights or contracts over the land. 3) An Alpine Convertible Bond is a type of foreign currency convertible bond issued by Indian companies exclusively to Swiss investors.