ERP or Erp may refer to:

Economics

Effective rate of protection In economics, the effective rate of protection (ERP) is a measure of the total effect of the entire tariff structure on the value added per unit of output in each industry, when both intermediate and final goods are imported. This statistic is us ...

, of tariffs *

Equity risk premium The equity premium puzzle refers to the inability of an important class of economic models to explain the average equity risk premium (ERP) provided by a diversified portfolio of equities over that of government bonds, which has been observed for ...

, excess return on risky investments *

European Recovery Program The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred $13.3 billion (equivalent to $ in ) in economic recovery pr ...

or Marshall Plan

Science and technology

Effective radiated power Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter. It is the total power in watts that would ha ...

, of directional radio transmission *

Electronic Road Pricing The Electronic Road Pricing (ERP) system is an electronic toll collection scheme adopted in Singapore to manage traffic by way of road pricing, and as a usage-based taxation mechanism to complement the purchase-based Certificate of Entitlemen ...

, in Singapore *

Enterprise resource planning Enterprise resource planning (ERP) is the integrated management of main business processes, often in real time and mediated by software and technology. ERP is usually referred to as a category of business management software—typically a suit ...

, a business process system

Medicine

* Effective refractory period, in a cardiac cycle * Estrogen receptor positive, a cancer pathology test result *

Event-related potential An event-related potential (ERP) is the measured brain response that is the direct result of a specific sense, sensory, cognition, cognitive, or motor system, motor event. More formally, it is any stereotyped electrophysiology, electrophysiologi ...

, a measured brain response * Exposure and response prevention, a treatment method in behavioral therapy * OspE/F-like related protein, in Lyme disease microbiology

Places

Erp, Ariège Erp (; ) is a commune in the Ariège department in southwestern France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Gui ...

, a village in France * Erp (Germany), a village *

Erp, Netherlands Erp () is a village in southern Netherlands, in the province of North Brabant between 's-Hertogenbosch and Eindhoven. Prior to 1994, Erp was a Municipalities of the Netherlands, municipality consisting of the town of Erp and the villages of Boerdon ...

, a town

Other uses

Erp (Pict) ERP or Erp may refer to: Economics * Effective rate of protection, of tariffs * Equity risk premium, excess return on risky investments * European Recovery Program or Marshall Plan Science and technology * Effective radiated power, of direction ...

, father of Drest I of the Picts * ''Ejército Revolucionario del Pueblo'' (disambiguation), (Spanish for People's Revolutionary Army), several Latin American communist or socialist organizations *

Energy-related products Energy-related products (ErP) are products that use energy, or that do not use energy but have an indirect impact on energy consumption, such as water using devices, building insulation products, windows, etc. Compared to ErP, energy-using product ...

, that use or affect energy consumption *

Erotic role-playing Sexual roleplay is roleplay that has a strong erotic element. It may involve two or more people who act out roles in order to bring to life a sexual fantasy and may be a form of foreplay and be sexually arousing. Many people regard sexual rol ...

, the use of role-playing in sexual or romantic contexts

Economics

Science and technology

Medicine

Places

Other uses

See also