The phrase "are based on broad" is not complete and lacks context, but it is grammatically correct.
You can use it when discussing concepts, theories, or conclusions that derive from a wide range of sources or general principles.
Example: "The findings of this study are based on broad research conducted over several years."
Alternatives: "are grounded in extensive" or "are founded on wide-ranging".
These statistics are based on broad interpretation of what counts as the community.
Attempts to artificially cabin opinions that are based on broad principles are bound to fail.
Typically, research proposals submitted to government entities like the National Institutes of Health and the National Science Foundation are selected after intensive reviews by scientific panels and are based on broad national priorities.
PricewaterhouseCoopers (PWC) has also decided to split into two or three, though its plans depend on the details of the new rule.One problem for the firms is that the SEC's proposals, so far, are based on broad principles.
Many of the products we use today are based on broad concepts pioneered elsewhere.
Also, as we mentioned, free access to discussion fora means that the statistical properties are based on broad social sample.
Our hope and our faith are based on broader considerations.
Estimates are based on broad-scale assessments of exposure to risk, rather than systematic evidence about the sensitivity of human movements to particular environmental changes.
This is a tacit acknowledgment that financial firms often have a choice over where to base themselves, and regulatory regimes will play a part in that.Britain's financial system, which has served as a model for regulators from Hong Kong to Dubai, is based on broad principles and "risk-based" regulation.
This is good news for those who want laws to be based on broad consensus and generally to avoid what James Madison called "public instability".
The Regina Manifesto, adopted at the party's first annual convention at Regina, Sask., in 1933, was based on broad socialist principles.
