Leontieftabellen

Leontieftabellen, also known as input-output tables, are statistical tools used to analyze the interdependencies within an economy. Developed by Nobel laureate Wassily Leontief, these tables depict the flow of goods and services between different sectors of an economy over a specific period, typically a year. Each sector's output is shown as a combination of inputs from other sectors and primary inputs like labor and capital.

The structure of a Leontieftabelle involves rows representing the sales of a particular sector to other sectors and primary inputs, and columns representing the purchases of inputs by a particular sector from other sectors and primary inputs. This creates a matrix where the sum of each row equals the total output of that sector, and the sum of each column equals the total input used by that sector.

These tables are crucial for economic planning, forecasting, and policy analysis. They allow policymakers to understand the ripple effects of changes in one sector on the rest of the economy. For instance, an increase in demand for automobiles will not only boost the automotive industry but also create demand for steel, rubber, glass, and other related sectors. Leontieftabellen help quantify these indirect effects.

Economists use them to calculate economic multipliers, which indicate how much total economic activity is generated by an initial change in demand. They are also fundamental to input-output modeling, a technique used to simulate the impact of various economic policies or external shocks on national and regional economies.