Excludability
Excludability
A free-rider problem.
A free rider problem
A free-rider problem.
A public good can be defined as a shared benefit at a societal level.
A trait shared with a common ancestor is called an inherited or ancestral trait.
A key trait shared by public goods is non-excludability, meaning that once they are provided, no one can be effectively excluded from using them. Additionally, public goods are characterized by non-rivalry, where one person's use of the good does not diminish its availability for others. Examples include clean air, national defense, and public parks, which benefit all members of society without direct competition for their use.
recessive
An ancestral trait is a trait that is shared by a group of organisms and their common ancestor. It is a characteristic that has been inherited from a common ancestor and has been passed down through generations without change.
The genotype of the individual is homozygous for the trait in question.
non-excludability
The individual is said to be homozygous for that trait. This means that both copies of the gene for that trait are identical.