There can be various reasons: they are not in the database at all, the publisher provided faulty data, or your name variations are not appropriate, or you previously refused works.
What is in the database?
All data in RePEc is provided by the publishers. They may provide data for all or only part of their publications. To see what is currently listed, click the following links: working paper series
, software components
. Data we get from publishers that contain syntaxic errors is generally not listed, and publishers are notified about the errors, but they may not act on these reports. Typographical errors, for example in names, remain generally undetected. If you discover some, email the listed technical contact for correction.
. Make sure all your works are listed in your profile. To do so, you should have a proper set of name variations listed (once logged in click on "names"). Indeed, publishers do not have a consistent way of refering to authors. For example, John Edgar Smith may be listed as:
- John Edgar Smith
- John E. Smith
- John Smith
- J. Smith
- J. E. Smith
- Smith, John Edgar
- Smith, John E.
- Smith, John
- Smith, J.
- Smith, J. E.
not counting misspellings. If you fill the first, middle, and last name fields on the name variations page, and then click on the "suggestions" button, you should have a good set of relevant variations. Do not forget to "save".
. You may also have refused some of your works when they were suggested to you. They are not suggested to you again. To "unrefuse" them, go to the "research section" and look for the link to refused items in the box on the right.