The Dutch Speculative Bubble of 1636-1637 in Which Tulip Bulb Prices Reached the Equivalent of a Wealthy Amsterdam House and Then Collapsed Within Weeks

The tulip had been introduced to the Dutch Republic from Ottoman Turkey via Vienna in the late 16th century. By the early 17th century, Dutch horticulture had developed the commercial market in tulip bulbs that the wealthy mercantile class of the Dutch Golden Age was paying prices for.

The driving feature of the market was a viral disease — the tulip-breaking virus — that produced the “broken” colour patterns (flame-like streaks of contrasting colour) that the 17th-century Dutch market most prized. The virus was not understood at the time; the broken varieties appeared unpredictably from previously plain bulb stocks and could not be reliably reproduced. The scarcity of any particular broken variety drove its price up.

The most-prized variety was the Semper Augustus — a red-and-white broken tulip of which only approximately 12 bulbs were known to exist. A single Semper Augustus bulb in autumn 1636 was selling for approximately 10,000 guilders — equivalent to about eight years’ average craftsman wages, or to a Amsterdam canal house with furniture.

The futures market

The structural innovation of the 1636-1637 period was the development of a futures market in tulip bulbs. Bulbs are dormant from June to September each year; they are dug up, traded, and replanted across the autumn. The 1636 development was the paper-trading of futures contracts — promises to deliver specific bulb varieties at specific prices in the following spring, before the bulbs had been physically dug up or even verified to exist.

The futures market operated through informal Dutch trading networks, principally in Haarlem and Amsterdam, in taverns called colleges. Buyers and sellers met at the colleges, signed paper contracts that did not require down payment, and immediately resold the contracts to other speculators at higher prices. By December 1636 the paper-trading of tulip futures had decoupled from the physical tulip trade. Most of the trades did not involve future delivery; they involved paper resale within weeks at higher prices.

The peak prices of February 1637 were genuinely astonishing for single bulbs:

— Semper Augustus: 10,000 guilders — Viceroy (a less rare broken variety): 3,000-4,200 guilders — Admirael van Enkhuysen: 5,200 guilders — A single Viceroy bulb was traded for 24 wagonloads of grain, 8 fat pigs, 4 fat oxen, 12 fat sheep, 2 hogsheads of wine, 4 tons of beer, 2 tons of butter, 1,000 lb of cheese, a bed, suit of clothes, and a silver beaker (the Frans Francken contract of February 1637 lists the inventory)

The collapse

The collapse came at the Haarlem tulip auction of 3 February 1637. A buyer failed to appear for a purchase. The auction had to be re-opened with a reduced reserve; the reserve was not met; the sellers began to panic. Within a week the paper futures market had collapsed. The Semper Augustus that had been worth 10,000 guilders in mid-January was unsellable by mid-February.

The Dutch civil authorities at Haarlem and Amsterdam refused to enforce the February 1637 contracts. The legal argument they used was that the contracts had been speculative — gambling rather than mercantile commerce — and Dutch law did not enforce gambling debts. The decision was political rather than strictly legal; the Dutch authorities had to choose between enforcement (which would have bankrupted a portion of the Dutch mercantile class) and non-enforcement (which would limit the damage to paper losses).

The non-enforcement decision saved the Dutch economy from systemic damage. The macro-economic impact of the tulip mania was smaller than the later popular legend would describe.

What Mackay said

The conventional English-language account is Charles Mackay’s Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1841) — a Victorian-era moral fable about speculative behaviour. Mackay’s version emphasises the systemic damage of the collapse, the bankruptcies of Dutch merchants, and the long-term economic harm.

Anne Goldgar’s 2007 reassessment, Tulipmania, demonstrates from Dutch archival records that the actual macro-economic damage was smaller than Mackay described. The documented Dutch bankruptcies attributable to tulip losses were but not catastrophic. The substantive impact was cultural rather than economic — the Dutch became more sceptical of speculative paper trading, and the Dutch literary and artistic culture produced a genre of moralising literature against commercial folly.