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Table 2 A taxonomy of spillover effects in relation to the main intended intervention effect

From: Framework for identification and measurement of spillover effects in policy implementation: intended non-intended targeted non-targeted spillovers (INTENTS)

  

Type of effect

Intended (by the intervention)

Non-intended (by the intervention)

Unit affected

Targeted by the intervention

Main effect

Within-unit

Spillover effect

Not targeted by the intervention

Between-units

Spillover effect

Diagonal

Spillover effect