Define 'nudges' in the context of behavioral economics, and detail how choice architecture can be designed to subtly guide consumer behavior towards desired outcomes, with ethical considerations in mind.

In behavioral economics, "nudges" are interventions that subtly steer individuals towards a particular choice without restricting their options or significantly changing economic incentives. They are designed to leverage our cognitive biases and psychological tendencies to encourage certain behaviors, while still preserving freedom of choice. Unlike mandates, prohibitions, or significant financial incentives, nudges work by subtly altering the "choice architecture," which is the context in which decisions are made. The aim of nudges is to make it easier for individuals to make choices that align with their own goals and well-being, or in some contexts, the goals of an organization or society, but without forcing them into these behaviors. The underlying principle is that small changes in how choices are presented can dramatically impact the decisions people make. Choice architecture is the environment in which people make decisions. It includes the way options are presented, the default settings, the number and order of choices available, and the framing of information. Designing an effective choice architecture means understanding how these factors influence behavior. A well-designed choice architecture incorporates principles from behavioral economics to make it easier for individuals to make beneficial choices. Examples of effective nudges and choice architectures abound in many contexts. One of the most effective and commonly used nudges is the use of defaults. People tend to stick with default options due to a combination of inertia, the comfort of the status quo, and a sense that a default option is implici....