In Theory and History (1957), Ludwig von Mises laid out one of the twentieth century’s most ambitious defenses of praxeology: the idea that economics begins not with statistics or material forces, but with purposeful human action. Mises argued that people act toward imagined futures, interpret the world through ideas, and rely on institutions that make social life intelligible across time. Markets, in this framework, are not machines. They are processes of coordinated human plans unfolding under uncertainty.
Among Mises’s students and intellectual descendants, few pushed these insights further than Ludwig Lachmann. A German-born economist who fled Nazi Europe and later taught in South Africa, Lachmann became famous for emphasizing uncertainty, interpretation, and the instability of expectations within market life. If Mises provided the logical structure of action, Lachmann explored what it feels like to inhabit the market process from the inside.
One of Lachmann’s most illuminating concepts was orientation.
For Lachmann, markets work only because people possess enough shared orientation to make their plans compatible with one another. Individuals act in a world they can never fully know. The future is uncertain, information dispersed, and expectations constantly shifting. Yet somehow social coordination still occurs. Why? Because actors rely on orienting frameworks: prices, legal rules, habits, business conventions, reputations, and inherited institutions that help them interpret what is happening around them.
This idea is deeply compatible with Mises, even if Lachmann extends it in new directions. Mises already understood that human action depends on meaning, expectation, and interpretation. Money prices themselves function as orientation devices because they allow actors to compare alternatives and calculate across time. Property law, contracts, and market institutions stabilize expectations sufficiently for entrepreneurship and planning to occur. Lachmann’s contribution was to ask a deeper question: what happens when those orienting structures become unstable, contradictory, or fragile?
In this sense, Lachmann radicalized the subjectivism already present in Mises. Not only are values subjective; expectations about the future are subjective as well. Coordination is therefore never automatic or guaranteed. Markets persist because institutions provide interpretive bearings that make action intelligible.
This becomes especially clear in ordinary life. Consider something as simple as a haircut. One person pays a premium to visit an elite salon because it reinforces a desired social identity and participation in a certain status network. Another pays her sister-in-law to cut her hair in a basement salon, partly to support family ties and obligations. A third chooses the inexpensive chain haircut because convenience and standardization matter more than symbolic meaning. In each case, the technical service may be similar, but the transaction contains different institutional and social valuations.
This insight suggests an important refinement to the common claim that “prices are embedded in institutions.” It may be equally true that institutions themselves are partially priced into transactions. Family loyalty, reputation, social belonging, neighborhood identity, prestige, trust, and status all enter economic life through the valuations actors attach to them at the moment of exchange.
This leads toward what might be called an orientation-by-institution framework. Institutions are not merely rules and constraints sitting in the background of economic life. They are meaning-bearing structures that orient expectations, stabilize plans, and render action understandable to others. Markets depend not only on competition and private property, but on the interpretive frameworks that allow people to navigate uncertainty together.
Mises supplied the foundation. Lachmann opened the interior. Together they point toward a richer understanding of economic life—one where prices, institutions, expectations, and social meaning continuously shape one another within the unfolding market process.
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