For America’s 35M small businesses, tariff uncertainty hits especially hard

Imagine it’s April 2025 and you’re the owner of a small but fast-growing e-commerce business. Historically, you’ve sourced products from China, but the president just announced tariffs of 145% on these goods. Do you set up operations in Thailand – requiring new investment and a lot of work – or wait until there’s more clarity on trade? What if waiting too long means you miss your chance to pull it off?

Beyond averages: heterogeneous effects of monetary policy in a HANK model for the euro area

We introduce an estimated medium scale Heterogeneous-Agent New Keynesian model for forecasting and policy analysis in the Euro Area and discuss the applications of this type of models in central banks, focusing on two main exercises. First, we examine an alternative scenario for monetary policy during the early 2020s inflationary episode, showing that earlier hikes in interest rates would have affected more strongly households at the lower end of the wealth distribution, whose consumption our model suggests was already depressed relative to the rest of the population.

Hand-to-mouth banks: deposit inflows and the marginal propensity to lend

In modern macroeconomics, the marginal propensity to consume out of transitory income shocks is a central object of interest. This paper empirically explores a parallel concept in banking: the marginal propensity to lend out of unsolicited deposit inflows (MPLD). Using county-level dividend payouts as an instrument for deposit inflows, I estimate the MPLD for U.S. banks and show that before QE, the average bank operated “hand-to-mouth” — it transformed approximately every dollar of deposit inflow into new loans, consistent with tight liquidity constraints.

How migrant business owners turn their identity into an asset, despite some bumps along the way

Odua Images/ShutterstockToo often, it’s anti-immigration sentiment dominating headlines in Australia. But a quieter story is going untold. Migrants are not just fitting into Australian society, they’re actively reshaping it through entrepreneurship.

Starting a business is difficult for anyone. But migrant entrepreneurs often do so without the networks, credit history, or local knowledge many Australian-born business owners take for granted.

Climate change, firms, and aggregate productivity

This paper uses a general equilibrium framework to examine the effects of temperature on firm-level demand, productivity, and input allocation efficiency, deriving an aggregate damage function for climate change. Using data from Italian firms and detailed climate data, it uncovers a sizable negative effect of extreme temperatures on firm-level productivity and revenue-based marginal product of capital.

Back to school when times are bad? The role of housing wealth

College enrolment typically rises during recessions. This paper demonstrates that housing wealth destruction dampened this countercyclical effect in areas most affected by the U.S. housing bust of 2008-2011. By combining household data with a mortgage credit register and housing price data, we reveal that negative shocks to housing wealth significantly reduced college enrolment among homeowners relative to renters during this period. Up to 2% of the local college-age population did not pursue college enrolment at the height of the bust due to housing wealth destruction.

From words to deeds – incorporating climate risks into sovereign credit ratings

We investigate the impact of climate risks on sovereign credit ratings worldwide. Our analysis shows that higher temperature anomalies and more frequent natural disasters – measures of physical risk – correlate with lower credit ratings. We find that long-term shifts in climate patterns (“chronic risk”) primarily affect advanced economies, while the increased frequency and severity of extreme weather events (“acute risk”) matters more for emerging economies. However, the estimated impact of both types of risk on credit ratings is low and the economic effects are negligible.

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