The invention of the flying shuttle dramatically increased the productivity of weavers, creating a sudden and massive demand for yarn that traditional spinning methods could not meet. This imbalance between weaving capacity and spinning output resulted in a severe production bottleneck, which inflated yarn prices and spurred innovation in spinning technology.

The 18th-Century Yarn Bottleneck

A production bottleneck is a point of congestion in a production system, such as a manufacturing line or a supply chain, that limits the overall throughput. The capacity of the entire system is limited by the capacity of the bottleneck. Identifying and managing bottlenecks is a key aspect of process improvement and operations management.

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Idea that human beings behave and think in certain ways specifically because there are constraints which exist that prevent them from doing otherwise.  These constraints exist on all levels of the human system on both an individual and structural level.

- Sociological Constraints
- Psychological Constraints

Theory of Constraints

African American couples have been shown to content with more individual and structural stressors that effect the efficacy of their relationship stability and propensity towards marriage 

- Cohabitation 
- Mate Availability 
- Children born outside of marriage 
- Interpersonal Manifestations of the Sociological Constraints


SOCIOLOGICAL CONSTRAINTS: STRESSFUL EVENTS

Psychological constraints refer to current and historical situations which led to the development of certain psychological traits or tendencies that constrain African-American’s tendencies to want to engage in relationships and marriage.
The psychological constraints used in the article include: 
- Trust and Fairness
- Forgiveness

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