Reillys Law of Retail Gravitation

Reilly's Law of Retail Gravitation In 1931, William J. Reilly was inspired by the law of gravity to create an application of the gravity model to measure retail trade between two cities. His work and theory, The Law of Retail Gravitation, allows us to draw trade area boundaries around cities using the distance between the cities and the population of each city. History of the Theory Reilly realized that the larger a city, the larger a trade area it would have and thus it would draw from a larger hinterland around the city. Two cities of equal size have a trade area boundary midway between the two cities. When cities are of unequal size, the boundary lies closer to the smaller city, giving the larger city a larger trade area. Reilly called the boundary between two trade areas the breaking point (BP). On that line, exactly half the population shops at either of the two cities. The formula is used between two cities to find the BP between the two. The distance between the two cities is divided by one plus the result of dividing the population of city B by the population of city A. The resulting BP is the distance from city A to the 50% boundary of the trade area. One can determine the complete trade area of a city by determining the BP between multiple cities or centers. Of course, Reillys law presumes that the cities are on a flat plain without any rivers, freeways, political boundaries, consumer preferences, or mountains to modify an individuals progress toward a city.

Clench vs. Clinch

Clench vs. Clinch Clench vs. Clinch Clench vs. Clinch By Mark Nichol What’s the difference between clench and clinch? Their meanings are identical, but usage varies. To clench or to clinch is to hold tight. However, clench has limited senses of grabbing something or tightening a part of one’s body, such as a fist or a jaw. Clinch, though it is a variant of clench, is much more diverse in usage, with literal and figurative meanings. It refers to bending or flattening nails, screws, and other fasteners, to closing or settling a deal or an argument, or to guaranteeing a victory. It can also be a noun, referring to the action of holding or hugging, and a clincher is someone or something that secures or settles. The predecessor of clench and clinch is cling, which also has a sense of holding tight, as when someone clings to someone else or to something (whether an object or an idea), but it also refers to things that hold together or adhere, such as material (like fabric or plastic) that wraps closely around a person or an object. Clutch, more distantly related to the other words, has the same basic meaning as clench and clinch but has an additional connotation of sudden movement. In addition, unlike its synonyms, it may suggest an aborted or unsuccessful attempt to grab something or someone. Clutch is also used as a noun to describe a hold or an attempted hold, and it may refer to a mechanical part that holds other components in place during a shifting of gears, or to a pedal that activates such a part. It also has a figurative meaning of â€Å"a difficult situation,† or one may figuratively be caught in someone’s clutches or in a clutch caused by circumstances. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Misused Words category, check our popular posts, or choose a related post below:70 Idioms with HeartCapitalization Rules for the Names of Games50+ Words That Describe Animals (Including Humans)