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🔄 '''Insurance cycle''' describes the recurring pattern of alternating [[Definition:Soft market | soft]] and [[Definition:Hard market | hard]] market conditions that characterize the [[Definition:Property and casualty insurance | property and casualty insurance]] industry over multi-year periods. During the soft phase, abundant capacity drives [[Definition:Insurance premium | premiums]] down and loosens [[Definition:Underwriting | underwriting]] standards; during the hard phase, capital contraction — often triggered by large [[Definition:Catastrophe loss | catastrophe losses]] or poor investment returns — pushes premiums higher and tightens terms. This cyclicality has persisted for decades and remains one of the defining dynamics that [[Definition:Insurance carrier | carriers]], [[Definition:Reinsurer | reinsurers]], [[Definition:Insurance broker | brokers]], and [[Definition:Institutional investor | investors]] must navigate.

📉 The mechanics of the cycle are rooted in the unusual economics of insurance, where the product is priced and sold before its true cost is known. In a soft market, carriers compete aggressively for [[Definition:Market share | market share]], sometimes writing business at [[Definition:Combined ratio | combined ratios]] above 100% in the expectation that [[Definition:Investment income | investment income]] will bridge the gap. As [[Definition:Underwriting loss | underwriting losses]] accumulate and surplus erodes — a process often accelerated by a major [[Definition:Natural catastrophe | natural catastrophe]] or [[Definition:Reserve (insurance) | reserve]] deficiency — capacity exits and survivors gain pricing power, shifting the market into a hard phase. Eventually, rising premiums attract new capital — including [[Definition:Alternative capital | alternative capital]] from [[Definition:Insurance-linked securities (ILS) | ILS]] markets and [[Definition:Private equity | private equity]] — which restores capacity and sows the seeds of the next soft cycle.

📊 For industry participants, the cycle's practical consequences are far-reaching. Carriers that under-reserve during soft markets may face [[Definition:Insolvency | insolvency]] risk when losses develop beyond expectations; those that maintain discipline and build surplus during good years are best positioned to grow profitably when the market turns. [[Definition:Insurance broker | Brokers]] must manage client expectations as renewal terms shift, and [[Definition:Managing general agent (MGA) | MGAs]] with [[Definition:Delegated underwriting authority (DUA) | delegated authority]] can find their capacity pulled if their carrier partners retrench. Increasingly, sophisticated [[Definition:Predictive analytics | predictive analytics]] and real-time exposure monitoring aim to dampen the cycle's volatility, but the fundamental interplay of competitive behavior, capital flows, and unpredictable loss events ensures that the insurance cycle endures as a central feature of the industry's landscape.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Hard market]]
* [[Definition:Soft market]]
* [[Definition:Combined ratio]]
* [[Definition:Underwriting]]
* [[Definition:Alternative capital]]
* [[Definition:Catastrophe loss]]
{{Div col end}}

Definition:Insurance cycle - Revision history

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