A listing of economic and fiscal impact terminology frequently used throughout this report can be found in Figure 1.
Figure : Acronyms and Abbreviations
Percentage of jurisdiction that is zoned to allow gas stations under a “conditional use permit.”
Dummy variable. “1” if the gas station is located within this zone, “0” otherwise.
Distance of a particular station to a major highway such as I-695 or State Highway in miles.
Distance of a particular station to its nearest competitor in miles.
Variables that are characteristic identifiers of the data, but are assigned the value 0 or 1 depending on the characteristic. For example, one may use “sex” in a regression and set 1 for “female” and 0 for “male.” If the respondent is female then the dummy variable will be 1, and and results will be the difference between male and females for the dependent variable.
Household Income per Capita
The average reported annual income for a region defined by the U.S. Census estimates divided by the recorded population estimates for the region as defined by the U.S. Census.
Average recorded margins for a given region or station over a period of time (annual or weekly). Margins reflect the difference between retail and rack, less taxes and freight.
Dummy variable. “1” if the gas station is located in a nonconforming zone, and “0” otherwise.
Percentage of jurisdiction that is fully zoned for gas stations.
The average annual recorded or estimated population for a given region as determined by the U.S. Census.
The difference in rack prices between the current period and the previous period.
Rack (Wholesale) Prices
Average rack prices recorded over a period of time (annual or weekly) for a given region or station.
Average retail prices recorded over period of time (annual or weekly) for a given region or station.
Stations per Capita
The total number of stations within a given region during a period of time divided by the total population estimate as recorded by the U.S. Census.
The average excise tax reported for that region during that time.
The percentage of unbranded stations within a given region during a period of time (annually) divided by the number to total stations during that same period.