COLUMN-'Excess' savings - accelerant or mirage? : Mike Dolan

(The author is editor-at-large for finance and markets at Reuters News. Any views expressed here are his own)

By Mike Dolan

LONDON, March 3 (Reuters) - With the second wave of the pandemic came the second lockdowns - and now evidence of the second household savings stash, too.

But even as expected spending of trillions of dollars of these "excess" savings stokes economic recovery forecasts, inflation fears and financial markets, some economists suspect large chunks of what look like precautionary buffers may outlive the pandemic itself - or least not find their way to the shops.

Despite the financial distress experienced by many families during the pandemic lockdowns of the past year, most in developed economies worked from home, received furlough payments or direct government cheques. With few services, travel or leisure activities open to spend incomes on, many debts were paid down and aggregate savings and bank deposits ballooned.

As the first lockdowns eased last summer, some - though not all - of that additional buffer was spent - but spurring a dramatic bounce in activity late last year.

Now, U.S. data for January shows the second wave had a similar effect, with household savings as a share of disposable income surging 7 percentage points in the first month of the year - and back above 20% for the first time since May. While shy of the 33% hit last April, January's rate was still higher than in any month in the 60 years prior to the COVID shock.

Boosted by fresh lockdowns and December's "mini" $900 billion government package of supports and direct household handouts, that savings rate translates into almost $4 trillion in total - or more than $2 trillion than the average month of the two years prior to the pandemic and almost 10% of gross domestic product.

If these "excess" savings are fully spent again as the pandemic ends, alongside $1.9 trillion of new government spending and $120 billion per month Federal Reserve bond buying, it risks a sharp rise in inflation, according to economists such as former Treasury chief Larry Summers and ex International Monetary Fund chief economist Olivier Blanchard.

Last week's sudden bond market turbulence showed just how much of a difference that means to investors.

And it's not a phenomenon peculiar to the United States. Although European data lags, estimates show a similar pattern in through last year and into 2021.

A Reuters analysis of the top four UK banks' results shows domestic customers deposited 221 billion pounds of extra cash last year.