I wish I knew where the economy will be heading next year. If I did, I might become rich. But, alas, I don’t — and even if we don’t always acknowledge it, no economists do.

Too much uncertainty clouds the crystal ball to be confident that any particular course of events will play out in the real world. But we do know something about the sources of that uncertainty, and in a season for sharing, I’d like to offer six questions whose eventual resolution will shape the economic year ahead:

■ How much slack really remains in the labor market?

The unemployment rate stands at 5.8 percent. If it continues on its current trajectory, it will have fallen an additional half a percentage point by mid-2015, putting it at a level that some economists see as effectively full employment.

Yet much of the reduction in unemployment reflects a decline in the share of the population in the work force. If a stronger economy were to induce these people to return to work, the recovery would still have a long way to run before we got to full employment. Moreover, millions of those who are counted as employed remain stuck in part-time jobs but want full-time work.

Further improvements in the labor market also depend on whether the long-term unemployed — those who have been out of work six months or longer — will successfully transition into new jobs. Pessimists emphasize that high levels of long-term unemployment proved to be an intractable problem through much of Europe over the last 40 years. Yet more recent evidence from the United States — particularly from the early stages of this recovery — makes me more optimistic that we can get the long-term jobless back to work.