Germany runs into a specific ceiling on the supply side of its economy: employer exposure to sick-leave costs that inflate the effective price of labor, and Sunday trading laws that compress retail activity into six calendar days per week. Merz's ruling coalition has agreed to work on both at once, coupling €10bn in tax relief with tighter sick-leave rules and extended Sunday opening hours as part of a push to revive growth.

The mechanism behind the retail measure is direct. Germany's Sunday trading restrictions have historically required most retail to close or operate under tight limits, and every closed Sunday is a day of forgone consumer spending. Extending those hours expands throughput without requiring new capital investment, making it a structurally meaningful change at relatively low fiscal cost.

Sick-leave rules sit at a different point in the labor cost stack. Germany's sick-leave framework places a significant portion of the absence-period burden on employers, and that tends to suppress hiring at the margin. Tighter regulations would reduce that exposure, lowering the effective cost per hire. The mechanism is straightforward in theory. The politics are not. The coalition had to overcome internal divisions to include this measure, which suggests it was among the harder elements to negotiate.

The €10bn tax cut is the headline figure and the number that traveled furthest from the announcement. The structural changes on labor costs and retail hours may prove the more durable lever on Germany's growth problem if they survive implementation intact.

The watch is the secondary legislation. "Tighter sick-leave rules" is a phrase wide enough to cover both modest administrative tweaks and more significant reductions in employer liability. The coalition's internal divisions did not disappear with an agreement in principle. They tend to resurface when the drafting gets specific.