Diaspora Investment & Foreign Investment?

Foreign investors to countries like St. Vincent and the Grenadines enjoy access to key concessions that entice them to invest. Usually these are wealthy investors with deep pockets and millions of dollars to invest in infrastructural projects such as hotels. Vincentian nationals in the diaspora are eligible for similar concessions. However, many in the diaspora may not possess millions of dollars, but have great ideas and unending love for their homeland and a deep interest in its development. Should special concessions be made to Vincentians in the Diaspora who wish to invest in their homeland? What conditions do you think should exists to encourage and stimulate more diaspora investments?