multiregionale

Multiregionale is an adjective used to describe something that involves, relates to, or spans more than one geographic region. The term is used in several fields to denote cross-regional scope, interaction, or coordination.

In economics and regional science, multiregional refers to analyses or models that track economic activity across multiple regions or countries. Multiregional input–output models, for example, decompose production, trade, and environmental flows by region to study interregional linkages, supply chains, and the regional impacts of globalization.

In medicine and pharmacology, a multiregional clinical trial (MRCT) is a study conducted across several geographical regions to evaluate safety and efficacy. Such trials aim to support regulatory approvals in multiple jurisdictions and to assess whether treatment effects are consistent across diverse populations, incorporating regional differences in medical practice and genetics.

In anthropology, the multiregional evolution hypothesis contends that modern humans originated from multiple regional populations of Homo erectus and other hominins, with ongoing gene flow among regions, rather than a single origin in one place.

In public policy and regional development, multiregional planning or cooperation describes efforts that involve more than one region, coordinating infrastructure, economic development, or environmental management to address shared challenges and opportunities.

In Italian usage, multiregionale corresponds to the English term multiregional, and the concept appears in the same cross-regional contexts.