Politics matters for economics — but maybe not in the way you think
  1. french flag france elections
    french flag france elections

    (Jean-Paul Pelissier/Reuters)

    A Bank of America Merrill Lynch team found that consumers' feelings about the economy were mostly tied to underlying "hard" economic data

  2. Political uncertainty didn't seem to have much effect on those feelings

  3. Despite that, politics — and the policies that emerge from election results — may matter

Politics and economics are often intertwined, with the winners of elections having influence over policies that can affect the lives of millions.

However, the effects of political uncertainty, like that surrounding the recent election in France that went to a runoff in which centrist Emmanuel Macron defeated far-right nationalist Marine Le Pen, on consumer confidence are not necessarily as clear cut as one might think.

In a recent report to clients, a team at Bank of America Merrill Lynch led by Gilles Moec analyzed the effect of political uncertainty on consumer sentiment in France and Italy.

They found that consumer confidence is "generally very well" explained by a handful of "hard" economic variables, like income and employment figures.

However, changes in "pure sentiment" unrelated to those hard variables don't necessarily mean a change in consumption decisions (aside from, maybe, the last few quarters in Italy).

Meanwhile, political uncertainty on its own didn't have any "obvious" effect on confidence.

That being said, this doesn't mean that politics doesn't matter for understanding a country's economy, Moec said.

"It does, but far more through the actual implementation of policies, affecting income, employment and asset prices, the 'hard' determinants of spending, than through the 'confidence channel,'" he explained.

"In short, when looking at political developments, policy implementation should remain the main focus of market attention."

Modeling sentiment

Now, let's look at the team's actual analysis. (For the sake of clarity, and in light of the recent election, we're going to stick with just the data on France.)

First up, the team attempted to estimate "pure sentiment," or changes in consumer sentiment distinct from what would be expected based on economic fundamentals. They reasoned that this component of sentiment could be most susceptible to being influenced by political uncertainty.

They estimated a model for consumer confidence by changes in income, consumer prices, employment, and equity prices, and found that these four variables together can explain 84% of the variance in consumer confidence from 2000 to 2014 in France, leaving 16% as unexplained "pure sentiment."

Of course, the team added it might have missed some other "hard" variables and that the remainder might not be completely "pure sentiment."