Luiz F. Nunes da Silva

Instruments for the economic measurement of law. Indices for markets, tools for code. All published to be checked.

Independent researcher and author. São José, Santa Catarina, Brazil.

Economics, law, technology and art: research, measurement and decision systems.

Economist — Corecon/SC 4045 (Conselho Regional de Economia, Santa Catarina, Brazil).

Especialista em Direito Público e Tributário — public law and tax law, Brazil.

ORCID 0009-0002-5409-7074.

I lead Radar Perene Research: research on risk, structural dynamics and quantitative methods.

I also make experimental computational artworks: Perene Sky (perenesky.art) and, soon, The Inseparables (theinseparables.art).

Published

  • Measuring structural risk disposition in Brazilian equities Article. Brazilian Review of Finance (RBFin), 2026. doi.org/10.12660/rbfin.v24n1.2026.98843
  • Nominalismo e alíquota efetiva real: mensuração da erosão inflacionária do IRPF da pessoa física sobre o ganho de capital imobiliário e os rendimentos de locação Article. Revista Fórum de Direito Tributário, n. 142, Jul./Aug. 2026. Print edition, with no public link.
  • Mensuração Econômica Preliminar de Controvérsias Empresariais: magnitude, contrafactual e dependência de premissas Working paper. A reproducible framework for economic screening ahead of any damages assessment. doi.org/10.5281/zenodo.22998350
  • Mensuração Econômica de Carteiras Jurídicas: uma estrutura para identificação de magnitude, concentração e dependência de premissas Working paper. Measures what is at stake across a set of corporate disputes, where it concentrates and which reading of the law it depends on. doi.org/10.5281/zenodo.22998363
  • closure_drift: does your version label name exactly one version of your code? Software. Apache-2.0. The executable instrument. doi.org/10.5281/zenodo.21763931
  • Closure Drift Under Continuous Publication: Protocols and Measurement Record Working paper. CC BY 4.0. The protocol and the record it produced. doi.org/10.5281/zenodo.21765404
  • Radar Perene Working Paper Series A working paper series on the construction of composite indices for the Brazilian market, written in both English and Portuguese, with a citable data package that carries its own pre-registration. CC BY 4.0. The ORCID record below indexes part of the series; the deposits themselves are the complete record. orcid.org/0009-0002-5409-7074

Two forthcoming books with Editora Lumen Juris, on selective taxation and on the economics of family wealth and succession in Brazil.

Method

  • I publish the instrument, not only the claim: the code that produced a result carries its own licence and its own identifier.
  • I declare the method before the result: the data package carries its pre-registration inside it.
  • I keep identifiers that do not move, so that a citation made today still resolves years from now.

What I study

  • Reproducibility of computational results when code and data change over time.
  • What a version label identifies — and what it leaves unidentified.
  • Construction, documentation and verification of composite market indices.
  • The economics of taxation and of the transmission of family wealth.
  • Criteria of legitimacy for corrective taxation.
  • Economic measurement of legal disputes, one by one and in aggregate.

Patents

A portfolio of patent applications has been filed. The subject matter remains confidential and is not described here.

Contact

contact@luizfnunesdasilva.studio