This is mainly because there are few established facts, and it is not clear how research should proceed.

The research will proceed in two major ways.

Most empirical research into the effects of controls proceeds on the basis that the decision is unexpected by those operating within the economic system.

My research cannot proceed until that has been done.

It seems worth stating at the outset that there are two ways geographical research in this general area can proceed.

Most of those interviewed said the research should proceed, but with extreme caution.

That makes sense: research in this building will proceed in two directions.

Indeed, further Congressional action would be required to begin development and construction of new nuclear devices if the research proceeded satisfactorily.

The research may proceed to attempt to explain why this is the case.

Which is only going to happen if my research can proceed unhindered.