In the context of data used for analysis, primary data is original and collected firsthand by the researcher. Examples include surveys, interviews, or direct observations. Secondary data, on the other hand, is data that has been previously collected by someone else and is used for purposes other than those for which it was originally collected.

Step 2: Examples of Primary and Secondary Data

Primary Data: Data gathered through surveys, interviews, or experiments.

Secondary Data: Data gathered from existing sources such as books, articles, reports, and other publications.

Step 3: Application to the Provided Choices

Given the options:

A news article

A letter to shareholders

A Bloomberg Disclosure score

Analysis:

News Article (A): This is secondary data because it is published information that has been gathered, reported, and possibly analyzed by someone other than the researcher.

Letter to Shareholders (B): This is typically primary data as it is a direct communication from the company to its shareholders, often containing firsthand insights or original information about the company’s performance and future outlook.

Bloomberg Disclosure Score (C): This is also secondary data as it is a score derived from the analysis of various data points that Bloomberg collects and compiles.

Step 4: Verification with ESG Investing References

According to the MSCI ESG Ratings Methodology, secondary data sources include:

Company disclosures (e.g., 10-K reports, sustainability reports)

Government databases

Media sources (e.g., news articles)

NGO reports

As highlighted in the ESG Ratings Methodology document: "3400+ media sources monitored daily (global and local news sources, governments, NGOs)" are used as part of secondary data sources to assess companies' ESG risks and opportunities​​.

Conclusion: A news article is an example of secondary data as it is collected and published by an entity separate from the entity conducting the analysis.

=================