"leverage effect" is correct and can be used in written English.
You can use it to refer to a situation in which a small change in one area has a larger effect on a related area. For example, "The new tax reforms had a leveraged effect on business spending and investment rates."
The leverage effect of photonics technologies: the European perspective.
We found little evidence for a leverage effect (leverage = zero).
A Lévy-based stochastic volatility model considering the leverage effect is also proposed.
Findings in the form of backward multipliers suggest that R&D subsidies have stimulated a substantial leverage effect.
The Leverage Effect Puzzle: Disentangling Sources of Bias at High Frequency, with Jianqing Fan and Yingying Li, Journal of Financial Economics, 2013, 109, 224-249.
The so-called energetic leverage effect describes the influence of manufacturing strategies on the energy balance in the use-phase of tribological components in technical products.
We propose a new ARCH-type model that uses a rational function to capture the asymmetric response of volatility to returns, known as the "leverage effect".
Together, European metropolises represent a very substantial public procurement market of about €10bn per year and this has a leverage effect on the private sector that very often aligns its own requirements with the public sector.
An application to stock price data shows the models perform very well, even in the face of data with rapid changes, especially if a superposition of processes with different risk premiums and a leverage effect is used.
This building has a leverage effect on Asian economies.
The latter suggests that jumps are an important channel for generating leverage effect.
