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Current Membership Stats
Participating Members 55
Participating Stores 47,467
Retail Shrink Average 2.20%
Alarm System Use 80.0%
EAS System Use 40.7%
CCTV System Use 47.9%

Glossary of Terms

1-Mile Radius Search

Users are able to examine shrink averages, shrink distributions, and security measure utilization within a 1-mile radius of an address or point. This search includes all NSD retail locations within the 1-mile radius. The same results can be viewed for retail categories as long as a sufficient number of stores from the selected category are available within the search area.

Alarm System

Alarm Systems are designed to provide notification of an intrusion into a protected structure. The alarm system must be active in order to qualify.

Analog Video Recording

An Analog Video Recording System records and stores video information primarily to videotape for later playback on a VCR.

Average

A value obtained by dividing the sum of a set of figures by the number of figures.
Example: In the National Shrink Database, shrink values are averaged for a given search area or retail category. If there are ten stores in a search, then the average shrink is computed by summing the ten shrink values and then dividing by ten.

Customer Bag Check System

A Customer Bag Check System is a method of preventing and detecting shoplifting in which patrons are either required to check their bags/purses at the door or allow employees to inspect bags upon exit of the store.

Break-In Barriers

Break-in Barriers provide perimeter security for the store's exterior with the goal of preventing drive-thru break-ins. Some examples include concrete barricades and anti-ram bollards.

Burglary Smoke Deterrence

A Burglary Smoke Deterrence System emits a cloud of smoke throughout the store in the event of an intrusion or break-in.

CCTV System

A Closed-Circuit Television (CCTV) System uses video cameras to monitor the behavior of store patrons either continuously or intermittently. The presence of a CCTV System can be used as a detection, deterrence, or post-incident investigative tool. The camera system must be active to qualify.

Courier Service

A Courier Service, also known as Armored Car Service, provides secure transportation and delivery of cash or other valuables.

Decile

Deciles divide a dataset into ten equal parts. Figures are sorted in ascending order. The 1st decile contains the lowest 10% of values and the 10th decile includes the highest 10% of values.
In the National Shrink Database, deciles are used to create the Shrink Distribution Chart.

Digital Video Recording

A Digital Video Recording (DVR) System captures a CCTV System's recordings on digital formats such as disk drives, memory cards, or other digital memory media.

EAS System

Electronic Article Surveillance (EAS) is a method of preventing or deterring shoplifting through the use of sensor tags and a detection system. If a person attempts to exit the store with a tag still attached to an item, an alarm or notification system is triggered.

Gate Protection

Security Gates are designed to provide a store with protection against "smash and grabs" and break-ins. A protective gate on the mall or shopping center’s exterior does not qualify.

Greeters

Store Greeters are employees or non-guard personnel who welcome or assist patrons upon entry of the store and often serve to deter shoplifting.

Guard Service

A store is considered to have Guard Service when there is a full- or part-time guard within the store itself. The presence of a seasonal or mall/shopping center guard does not qualify as guard service.

In-store LP personnel

In-store LP Personnel can be detectives or other loss prevention managers who work within the store on a regular basis in order to prevent or detect shrink and loss.

Intelligent Video

An Intelligent Video System automatically captures and analyzes specific events that have been programmed to trigger an analysis. Some examples include motion detection, camera tampering, people counting, and facial, product or other digital recognition.

Networked Video

A Networked Video System is a CCTV System that transmits images and signals over a network connection in order to provide remote access to a store's video surveillance.

Non-EAS Tagging/Cables

Non-EAS Protection can come in the form of non-active tags, ink tags, or cables that are affixed to merchandise in order to prevent or deter shoplifting.

Percentile

VA value below which a certain percentage of observations fall.
Example: In the National Shrink Database, percentile indicates how high or low a location’s shrink is in comparison to the other sites in a retailer’s portfolio. For instance, if a store is at the 90th percentile, it means that 90% of the retailer’s other stores have shrink lower than that of this particular location.

Quartiles

Quartiles divide a dataset into four equal parts. Figures are sorted in ascending order. The first quartile contains the lowest 25% of values, the second quartile holds the following 25% of values, the third quartile includes the next highest 25% of values, and the fourth quartile contains the highest 25% of values.
In the National Shrink Database, states are assigned to quartiles based upon their average shrink values.

Retail Category

Members are assigned to a maximum of two main categories (e.g. ‘Apparel’ or ‘Jewelry/Accessories/Eyewear’) and two subcategories, (e.g. ‘Women’s Apparel’ or ‘Jewelry/Watches’). Users are able to examine shrink by retail category or subcategory as long as a sufficient number of stores from the given category or subcategory are available within the search area. As the membership grows, the number of categories and subcategories will continue to expand.

Retail Location Summary

Retail locations are displayed based on the individual user’s viewing rights and account access. The application allows the users to compare shrink at their individual locations to the average value for all participants in a given search area.

Security Measures

The eighteen security measures displayed within the National Shrink Database are frequently used within the retail industry to protect assets and decrease shrink.

Shrink Average Chart

The Shrink Average approach takes stores within the selected search criteria and averages their shrink, thus providing a means to determine if the average shrink is relatively high or low compared to the entire database. As a sole criterion of analysis, this index can lead to biased conclusions as it does not take into account the large differences in shrink distribution that exist from chain to chain. For example, all stores within a search may be generated from chains with high shrink which could skew the averages upward.

Shrink Distribution Chart

Using this approach, we recognize that shrink levels can vary markedly from one retail chain to another. We examine whether the stores within a search reside at the bottom, middle, or top of their companies’ shrink distributions. In this chart, the number of stores that fall within each decile of their respective companies’ shrink distributions is generated. The more stores that are in the highest deciles, the higher the shrink is in that area. The higher the concentration of stores that fall within the lowest deciles, the lower the shrink is in that area. A uniform distribution of stores across the 10 deciles or a cluster of locations in the middle deciles indicates an average shrink area.

Store Search

Users are able to examine a specific store’s shrink and its percentile across all locations within the company. A store’s security measures, shrink average, and shrink distribution are also displayed. The individual stores displayed within the search are locations belonging to your company only, not those of other NSD participants.

Summary Information

The information displayed below uses the shrink average approach, which selects the stores that meet the current search criteria and displays the number of participants, their average shrink and average percentile. This information provides a method of determining if the average shrink is relatively high or low. As a sole criterion of analysis, this index can lead to biased conclusions as it does not take into account the large differences in shrink distribution that exist from chain to chain. For example, all stores in a search may be generated from chains with high shrink which could skew the averages upward.

Virtual/Interactive Video

A Virtual or Interactive CCTV System is a remotely monitored surveillance tool that detects certain store activities and triggers a pre-programmed response in order to prevent or deter those events.

Window Treatment Protection

Window Treatment Protection represents any type of treatment or measure that has been taken in order to protect a store's windows from break-ins or shattering.

ZIP Code Search

Users are able to examine shrink averages, shrink distributions, and security measure utilization within a desired ZIP code. This search includes all NSD retail locations within the selected ZIP code. The same results can be viewed for retail categories as long as a sufficient number of stores from the selected category are available within the search area.