ERP or Erp may refer to:

Acronyms

Economics

* Effective rate of protection of tariffs * Equity risk premium, 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 over $13 billion (equivalent of about $ in ) in economic re ...

or Marshall Plan

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 Exposure therapy is a technique in behavior therapy to treat anxiety disorders. Exposure therapy involves exposing the target patient to the anxiety source or its context without the intention to cause any danger (desensitization). Doing so is tho ...

, a treatment method in behavioral therapy * OspE/F-like related protein, in Lyme disease microbiology

Other acronyms

* Effective radiated power, of directional radio transmission * ''Ejército Revolucionario del Pueblo'' (disambiguation), (Spanish for People's Revolutionary Army), various Latin American communist or socialist organizations * Electronic Road Pricing, in Singapore * Energy-related products, that use or affect energy consumption * Enterprise resource planning, a business process system

People

* Erp (Pict), father of Drest I of the Picts

Places

* Erp, Ariège, France, a village *

Erp (Germany) Erp is a village in Erftstadt, North Rhine-Westphalia, Germany. It has about 2650 inhabitants (2006). Location and appearance Erp is located 25 km south-west of Cologne in an open and flat landscape about 125 metres above sea level. The muni ...

, a village *

Erp, Netherlands Erp () is a village in the southern Netherlands, in the province of North Brabant between 's-Hertogenbosch and Eindhoven. Prior to 1994, Erp was a municipality consisting of the town of Erp and the villages of Boerdonk and Keldonk. In that year, th ...