Pollution Control
Methods and policies to reduce pollution including taxation, quantitative restrictions, and alternative technologies.
Pollution Rights
A government-issued permit that entitles a firm to emit a specified quantity of pollution.
Pollution Standards
An examination of pollution standards—regulated limits on pollutants as imposed by governments.
Ponzi scheme - Definition and Meaning
An extensive analysis of Ponzi schemes, including historical context, definitions, major analytical frameworks, and case studies.
Pooled Least Squares
Least squares regression analysis that ignores possible group structure of the data
Pooling Equilibrium
An equilibrium where agents with differing characteristics choose the same action, common in markets such as insurance.
Portfolio
A collection of different assets owned by an individual or a firm, designed for risk reduction and optimizing liquidity.
Portfolio Selection
The choice of proportions in different assets to maximize expected benefit from a given stock of wealth.
Position
Understanding the various types of positions in financial markets, including long, open, and short positions
Positional Good
A good whose value to consumers depends on its desirability ranking or relative consumption by others.
Positive Economics
A branch of economics that describes and explains economic processes and predicts the outcomes of institutional or policy changes, without making value judgements.