A news story from 2017 about the oil market stated, "crude oil prices fell ... in part [due to] renewed concerns about the global supply glut." a. What does the article mean by a "glut"? What does a glut imply about the quantity demanded of oil relative to the quantity supplied? b. What would be the effect of the glut on oil prices? c. Briefly explain what would make the glut start to shrink.

When the 2017 news story referenced a 'glut' in the oil market, it was highlighting a fundamental concept in economics - the balance of supply and demand. A 'glut' indicates a situation where there is an overabundance of a product, in this case, crude oil, meaning the supply far outweighs the demand.

In practical terms, if there is more oil available than consumers and businesses are willing or able to purchase, this surplus, or glut, occurs. The quantity demanded at the existing price is less than the quantity of oil that producers are trying to sell. This imbalance exerts a downward pressure on the market since producers may seek to offload excess supply, possibly by decreasing prices to stimulate demand.

Aligning supply with demand is a fundamental goal in economics. Logically, if an oil glut were to persist, producers might cut back on output to avoid a further price decrease or inventories could start stacking up, leading to potential storage issues and additional costs for producers.

The effect of a glut on oil prices is well-illustrated by the principles governing market prices. With an oversupply, the price for crude oil is expected to fall. This is due to the basic economic principle of supply and demand; a surplus of goods typically leads to lower prices as sellers compete to find buyers.

In the context of the oil market, a reduction in prices may be a signal sent to the producers to slow down supply and can also be a mechanism to lure more consumers to increase demand. The linkage between supply, demand, and price is such that each one influences the others continuously, creating a dynamic market environment. Market prices are not just numbers tagged on goods; they convey important information about the state of the market and prompt various stakeholders to react accordingly – whether it's cutting production, finding new markets, or innovating more efficient uses for oil.

From an economic standpoint, reducing the glut can be seen as an exercise in restoring equilibrium between supply and demand. This equilibrium is stymied when there's a persistent oversupply, and prices fall as a result. To address this, the interplay of various economic principles comes into focus.

For instance, the law of supply states that producers will supply less at lower prices if all other factors remain constant. Consequently, oil-producing firms may voluntarily reduce production, or an external event like a geopolitical conflict might inadvertently constrain supply. On the demand side, lower oil prices can spur increased consumption by reducing costs for transportation and manufactured goods, provided the demand is elastic.

Moreover, policy interventions, like taxes or subsidies, can significantly influence market behaviors by making oil either more expensive or cheaper to produce and consume. Understandably, stricter environmental policies could dampen the demand for oil, while economic growth could enhance it. Ultimately, the glut starts to shrink when these various levers are adjusted to stabilize the supply and demand at acceptable levels for market participants.