The phrase "are key conditions" is correct and usable in written English.
It can be used when discussing essential factors or requirements in a particular context, such as a project, agreement, or analysis.
Example: "In order to achieve success, there are key conditions that must be met, including effective communication and collaboration among team members."
Alternatives: "are essential factors" or "are critical requirements".
This potentially adds further relevant elements to the explanation of why and how stable institutions with relatively transparent rules are key conditions that help people more closely resemble straightforward economic agents, such that classical game theory finds reliable application to them as entire units.
Renouncing high-level enrichment and any nuclear military ambitions are key conditions set down by those six nations -- which also include Russia, China, Britain, France and Germany -- for easing sanctions on Iran that have crippled its economy.
These are key conditions for cooperation (Ostrom 1990; Yaffee 1998; Tyler and Degoey 1995).
Degradation of extracellular matrix and basement membranes as well as angiogenesis are key conditions for tumour cell spreading.
Global collaboration among researchers and sharing of human specimens and data to corroborate findings are key conditions of good scientific practice.
Cutting the budget deficit and making its economy more competitive were key conditions of the 240bn-euro (£202bn) bailout from the European Union and the IMF.
It is true that the medical treatment status and the clinical conditions are key elements of the increasing medical expenditure.
"Credit conditions are key to the housing market, but even a strong recovery in credit will not be sufficient to prevent house prices dipping again next year".
Special geological and topographic conditions are key factors in inducing major disasters.
Labor market conditions are key to that determination.
22 23 Recommendations related to lifestyle and health behaviours are key to all chronic conditions.
