An oriented hypergraph is an incidence structure that extends the concepts of signed graphs, balanced hypergraphs, and matrices. We introduce hypergraphic structures techniques generalize circuit classification graphic frame matroid to any matrix via its locally-signed-graphic substructure. To achieve this, Camion's algorithm applied hypergraphs provide a generalization reorientation sets frust...

Nowadays, academic journals of high standing rarely accept a conceptual idea in paper not instantly accompanied by econometric estimates. The would almost certainly get rejected. Empirical validation based on past statistical data has produced an unfortunate backward orientation economics. While one can learn from the past, this approach fails when underlying conditions strongly change. suggest...