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Wild fish are an example of common goods. They are non-excludable, as it is impossible to prevent people from catching fish. They are, however, rivalrous, as the same fish cannot be caught more than once. Common goods (also called common-pool resources [1]) are defined in economics as goods that are rivalrous and non-excludable. Thus, they ...
The rice provides the fish with shelter and shade and a reduced water temperature, along with herbivorous insects and other small animals that feed on the rice. [7] Rice benefits from nitrogenous waste from the fish, while the fish reduce insect pests such as brown planthoppers , diseases such as sheath blight of rice , and weeds. [ 7 ]
Also called resource cost advantage. The ability of a party (whether an individual, firm, or country) to produce a greater quantity of a good, product, or service than competitors using the same amount of resources. absorption The total demand for all final marketed goods and services by all economic agents resident in an economy, regardless of the origin of the goods and services themselves ...
The earlier term for the discipline was "political economy", but since the late 19th century, it has commonly been called "economics". [22] The term is ultimately derived from Ancient Greek οἰκονομία (oikonomia) which is a term for the "way (nomos) to run a household (oikos)", or in other words the know-how of an οἰκονομικός (oikonomikos), or "household or homestead manager".
The live fish trade can refer to the live food fish trade (for human consumption) or to the ornamental fish trade (for aquariums). The fish can come from many places, but most comes from Southeast Asia .
In 2005, China was sixth largest importer of fish and fish products in the world, with imports totalling US$4.0 billion. [2] In 2003, the global per capita consumption of fish was estimated at 16.5 kg, with Chinese consumption, based on her reported returns, at 25.8 kg. [2] The common carp is still the number one fish of aquaculture.
In 2010, China accounted for 60% of global aquaculture production (by volume) and had ~14 million people (26% of the world total) engaged as fishers and fish farmers (FAO). In 2009, China produced approximately 21 million metric tons (MTs) of freshwater fish or 48% of global output, and 5.3 million MTs of crustaceans or 49% of global output. [10]
Siniperca chuatsi, the mandarin fish (Chinese: 鱖魚, [2]), is a species of freshwater ray-finned fish from the family Sinipercidae, the Oriental perches. It is the type species of the genus Siniperca (Chinese perches).