GCRI · 社会と人間開発
メディアと情報システム
In a crisis, what people know depends on news media, social platforms, messaging apps, authority channels and word of mouth. These システム can save lives by spreading accurate warnings and guidance, or spread rumours and false information that cost them. This page sets out how information systems work in crises and over time, how information quality and access are measured, and what evidence serves the authorities, media and civil society involved.
Media and information systems in seven parts.
Media and information systems: how the risk develops.
Media and public information as social システム. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.
Local news is shrinking
Loss of local journalism leaves communities with fewer trusted sources and less scrutiny of local institutions.
Messaging apps carry crisis information
Private messaging groups spread information quickly, including rumours, and are hard for authorities to monitor or correct.
Platforms amplify what engages
Recommendation systems favour content that draws attention, which can amplify fear, outrage and false claims in a crisis.
Trusted messengers matter
People act on information from sources they trust, such as community leaders, health workers and local media, more than on distant authorities.
Social protection and cohesion.
このテーマを追跡するためにチームが使う画面：その指標、状態、決定。名前は例であり、値はイメージです。
Social protection and cohesion
Media and information systems · Urban ward 9 · Year 2
Coverage by quintile
Cohesion survey
| Trust in neighbours | 63 | 51 | ▲ 2 |
| Trust in local authority | 48 | 52 | ▲ 1 |
| Reported discrimination | 9 | 11 | ▲ 2 |
Information systems carry risk messages for every domain.
Findings are designed for the エビデンス・ブリーフ・シリーズ. The UN Global Principles for 情報の完全性 (2024) frame the field.
- Media monitoring studies.
- Evaluations of information interventions.
How media and information systems is modelled, measured and tested.
モデル、その仮定、データ、不確実性を、科学者やエンジニアが確認する形で示します。構造は公表された手法に従っています。描かれた値は例示であり、知見ではありません。
システム・モデル
The couplings between the systems in media and information systems: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.
何を、どの程度うまく測定しているか。
各指標には、その単位、更新頻度、背後にある出典の種類、値が持つことになるエビデンスのラベルが付いています。値は表示しません：プログラムが自らの権限のもとで値を提供します。
| 指標 | 単位 | 周期 | 出典の種類 | ラベル |
|---|---|---|---|---|
| Trust in news | percent trusting most news most of the time | 年次 | News consumption surveys | 報告値 |
| Main source of news by type | 回答者の割合（%） | 年次 | News consumption surveys | 報告値 |
| Journalists killed or imprisoned | 件数 | 年次 | Press freedom monitors | 報告値 |
| Local news outlets | count per region | 評価ごと | Media mapping studies | 推定 |
| Rumours tracked in crisis response | count by theme | 事象ごと | Community feedback システム | 報告値 |
| Population reached by authority crisis messages | percent | 事象ごと | Post-event surveys | 報告値 |
エビデンスの出所。
名前の明示された公開データセットと機関の記録。それぞれにライセンス区分があります。合意に基づく出典は、その条件のもとでのみ使用し、再公開することはありません。
| 出典 | 提供するもの | ライセンス区分 |
|---|---|---|
| ロイター研究所デジタル・ニュース・レポート | News use and trust across countries | Public report, terms per publisher |
| UNESCO Observatory of Killed Journalists and World Trends in Freedom of Expression | Safety of journalists and media freedom | Public, UNESCO terms |
| Committee to Protect Journalists data | Journalists killed and imprisoned | Public, terms to check |
| WHO infodemic management resources | Methods for managing information in health emergencies | Public, WHO terms of use |
| IFRC and partner community feedback and rumour tracking guidance | Methods for listening to communities in crises | Public, IFRC terms (to check) |
誰が決め、エビデンスが何に役立つか。
Society and Human Development prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.
| 誰が決定するか | 質問 | このページが提供するエビデンス |
|---|---|---|
| Public health and emergency authorities | How to reach people with accurate information in crises | Ecosystem assessments; trust profiles |
| Media organisations and regulators | How to support local journalism and information quality | Media mapping and freedom evidence |
| Humanitarian agencies | How to listen to and respond to community concerns | Rumour tracking evidence |
このトピックが生み出す成果物
- Information ecosystem assessments for crisis communication
- Rumour tracking and community feedback methods
- Media access and trust profiles
- Evidence notes for risk communication
専門家が問う問い。
- How is the information ecosystem structured, and who controls its key channels?
- What happens to public knowledge when local news declines?
- How do information flows behave during crises, and where do they break?
- Which communities are poorly served by mainstream channels?
- How do economic models of media affect the quality of risk information?
The ecosystem and its fragilities.
Information ecosystems combine professional media, platforms, messaging apps, community channels and authority sources. The decline of local journalism in many places has reduced coverage of local government, hazards and public health. Platforms have become major gatekeepers, and their ranking and moderation choices shape exposure to information. Encrypted messaging networks carry both community support and rumour, and are hard to observe.
During crises, demand for information surges while normal channels may fail through power and network outages. Rumours fill gaps when authority information is slow or distrusted. Language, literacy, disability and connectivity determine who receives timely information. Concentration of ownership and dependence on advertising revenue influence what is covered and how.
Resilient information システム share some features: diverse sources, trusted local intermediaries, channels that work without the internet such as radio, information in the languages people speak, and authority communicators who are open about uncertainty and correct themselves quickly. These features can be studied, compared and strengthened.
Public service and community media often play an outsized role in crises because they reach people without internet access and are locally trusted. Their funding and independence are therefore part of a society’s risk infrastructure, a point the field documents with comparative evidence across countries.
Methods and limits.
Ecosystem mapping
Mapping outlets, audiences and flows of information in a place.
Content analysis
Systematic analysis of coverage and narratives; large-scale methods need careful validation.
Audience research
Surveys and qualitative work on how people find and judge information.
Limits: platform data access is restricted, private messaging is largely unobservable, and rapidly changing technology dates findings quickly.
Where this page’s references lead.
このページの読解の基準となる機関と文書。状態と版は変わります。各リンクは発行機関へ移動します。
質問と回答。
What is an infodemic?
Why does local journalism matter in a crisis?
What is rumour tracking?
Does the platform rate media outlets?
How is this different from the chapter?
Is GCRI a media regulator?
このページからエビデンスを提供する。
報告書 is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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