Labour economics: aspects of economics concerned with the supply and demand for labour; includes factors affecting the participation rate, wage bargaining and organised labour, training, hours and conditions of work, practices concerning hiring, redundancy, turnover, migration and the age of retirement. ekonomika pracy

Labour-leisure trade-off: collection of points (line) representing the combinations of leisure time and earnings from work that are possible for an individual. dokonywanie wyborów praca-wypoczynek w zależności od zarobków

Laity: persons who have no expert knowledge of a particular subject. laicy

Landfill: method for final disposal of solid waste on land; refuse is spread and compacted and a cover of soil applied so that effects on the environment (including public health and safety) are minimised. składowanie odpadów

Landslide: disaster closely related to an avalanche; involves elements of the ground, including rocks, trees, parts of houses, and anything else which may happen to be swept up; can be caused by earthquakes, volcanic eruptions, or general instability in the surrounding land; cf. mudslide. osuwisko

Large claim pooling: system that isolates claims above a certain level and charges them to a pool funded by charges of all groups who share the pool; designed to help stabilize significant premium fluctuations. wydzielony fundusz na pokrycie ekstremalnych szkód

Lassa fever: severe viral disease whose symptoms include high fever, muscle aches, mouth ulcers, and bleeding in the skin. gorączka (krwotoczna) Lassa

Latency: time from the first exposure to a chemical until the appearance of a toxic effect. utajenie