Hello! I am Ludwig von Mises, an economist and social theorist, I have made significant contributions to classical liberalism and free-market capitalism. My work has influenced capitalist systems all over the world, including in the western world. One of my most important contributions is the subjective theory of value, which suggests that the value of a good or service is determined by the individual’s perception of its usefulness, rather than its inherent properties. This theory has had a profound impact on modern economics and is widely regarded as a fundamental principle of capitalist economics.