Question

Difficulty: Very hardIdentifying Unstated Assumptions in Passages

Passage:
Historians examining the financial innovations of the seventeenth-century Dutch Republic frequently attribute the stability of the Amsterdam grain market to the introduction of early maritime insurance contracts. These contracts, which shifted risk from individual merchant-captains to syndicates of wealthy investors, are presumed to have cushioned grain importers against catastrophic shipwrecks during the tumultuous Baltic trade voyages. However, an analysis of contemporary shipping manifests and merchant ledgers reveals that less than ten percent of grain-carrying vessels sailing from Danzig to Amsterdam were actually insured under these contracts. Instead, the overwhelming majority of grain merchants relied on informal credit networks and diversified consignment shipping—distributing a single grain cargo across multiple vessels—to hedge against loss. Consequently, the assertion that formal maritime insurance was the primary structural pillar stabilizing Amsterdam's grain supply during this period overstates its historical efficacy, as the market's resilience was predominantly maintained through informal risk-dispersion practices rather than institutionalized financial instruments.

Statement:
The author's argument that formal maritime insurance was not the primary structural pillar of Amsterdam's grain market stability relies on the unstated assumption that informal risk-dispersion practices were not themselves dependent on or structurally facilitated by the existence of formal insurance markets.

Answer: Answer

Answer

The statement is True. The author's conclusion that formal maritime insurance was not the primary pillar of market stability depends on the necessary unstated assumption that informal risk-dispersion mechanisms operated independently of formal insurance systems.
The statement is True because the author's inference from low direct contract adoption to lack of primary structural role is valid only if informal risk-dispersion practices did not rely on formal insurance systems. Utilizing the GMAT Negation Test demonstrates that if informal practices were dependent on formal insurance infrastructure, the author's thesis would collapse.

Step-by-Step Solution

1
Deconstruct the author's core argument into premises and conclusion.
Premise: Less than 10% of grain ships used formal insurance; instead, merchants used informal risk dispersion (credit networks and split consignments). Conclusion: Formal insurance was not the primary structural pillar of market stability.
Identifying the explicit logical bridge is necessary to isolate implicit gaps.
2
Identify potential logical gaps between the evidence of low direct policy usage and the broader claim regarding structural importance.
Low direct usage of formal insurance only proves lack of primary importance if the alternative mechanism (informal risk dispersion) is not itself anchored by or dependent on formal insurance.
An underlying mechanism can act as a primary pillar indirectly by supporting secondary practices.
3
Apply the Negation Test to the statement.
Negated Statement: 'Informal risk-dispersion practices WERE dependent on or structurally facilitated by formal insurance markets.' If true, formal insurance remains the ultimate primary pillar, directly undermining the author's conclusion.
If negating a statement invalidates the argument, that statement is a strictly necessary assumption.

Key Concept

Applying the Negation Test to Identify Necessary Unstated Assumptions in Passage Arguments
Estimated Time:2m 30s
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