Dear Sir,
I am interested in helping you to achieve your objectives. From the various target magazines you have cited, your intended audience would be professionals in the finance sector, interested in hearing what a person in your position has to say on the economy and its direction.
I would propose adopting a casual tone to the article, allowing you to build rapport with the reader and make a more persuasive and lasting impression. The topics you have mentioned tend to have broader, technical concepts, which should be broken down into digestible, reader-friendly ideas for the readers. I can include some research to bolster feasibility of your ideas, depending on the timeline we are working with.
Please contact me for further discussion.
Thank you.