This paper proposes that the law of value and demand better characterizes market activity than the law of supply and demand. The law of value and demand states that attributes determine value; value determines price; and that price determines demand. This mandates four-dimensional systems for all markets. The simultaneous analysis of four disparate markets reveals a statistically significant geometric system in 13 dimensions. This forms the framework for an n-dimensional model of the global economy, first revealed in this paper. The conclusion is that this law satisfactorily explains many economic phenomena that the law of supply and demand cannot.