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Scientific papers

Mathematics and Physics 

"Hirschman vs. Herfindahl: Some Topological Properties of Concentration Indexes", Mathematical
 Social Sciences
, Vol. 14, 1987, 299-302.
"Cycles and Circles in Roundoff Errors", Physical Review E, Vol.  47, 1993, 4560-4563.
"Measuring Dynamical Noise in Dynamical Systems", Physica D, Vol. 65, 1993, 289-299.
"Forecasting chaotic time-series with genetic algorithms”, Physical Review E, Vol. 55, 1997,  2557-2568.
“A note on self-similarity in the universal sequence”, Chaos, Solitons and Fractals Vol. 9 No.6, 1998, 965-073.
"The Number of Permutations With a Given Signature, and the Expectations of their Elements", Discrete Mathematics, Vol. 226, 2000, 423-430


"The gaps between the gaps: some patterns in the prime number sequence", Physica A 341 (2004) 607–617


“Tick size, the compass rose and market nanostructure”, Journal of Banking and Finance Vol. 22,
No. 12, 1998, 1559-1570.
“A Symmetric Pattern in Financial Markets”, Symmetry: Culture and Science Vol. 9  No. 2-4, 1998, 421-430.
“Zig-Zag Movements and Near Neighbors in the Foreign Exchange Market”, International Journal of Theoretical and Applied Finance, Vol. 3, 2000, 421-422.  

Economics and Econometrics

"Noise in Autoregressive Time-Series", Economics Letters, Vol. 37, 1991, 45-50.
"A Note on the Equitable Treatment of Mergers", Managerial and Decision Economics Vol. 13, 1992, 543-545.
"Exchange Rate Speculation and Chaos Inducing Intervention", Journal of Economic Behavior and Organization, Vol. 24, 1994, 363-368..
"Noise in unspecified, non-linear time-series", Journal of Econometrics, Vol. 78, 1997, 229-255.

Genetic algorithms 

“A search for hidden relationships: data mining with genetic algorithms”, Computational Economics, Vol 10 No 3, 1997, 267-277.
“The emergence of risk aversion”, Complexity, Vol. 2 No. 4, 1997,.31-39.
"Can computers have sentiments? The case of risk aversion and utility for wealth”, in Advances in Artificial Life, D. Floreano, J-D Nicoud, F. Mondada (Eds.), Lecture Notes in Artificial Intelligence, Vol 1674, Springer, Heidelberg, 1999, 365- 376.
“Tinkering with genetic algorithms”, in Evolutionary Computation in Economics and Finance, edited by Shu-Heng Chen, Physica Verlag, Heidelberg, 2002.
“Specification search in nonlinear time-series models using the genetic algorithm”, in Journal of Economic Dynamics and Control, Vol 26, 2002, 811-835. (with M. Beenstock)

Risk Aversion and Insurance

"The  Hypotheses of Absolute and Relative Risk Aversion: An Empirical Study Using Cross-Section Data", The Geneva Papers on Risk and Insurance, Vol. 8, October 1983, 336-349.
"The  Aggregation of Risk Aversions", Mathematical Social Sciences, Vol. 5, October 1983, 55-59.
"Optimal Insurance Coverage", Journal of Risk and Insurance, Vol. 52, December 1985, 704-710.
"Relative Risk Aversion Around the Word", Economics Letters, Vol. 20, January 1986, 19-21.
"Measuring Risk Aversion: An Alternative Approach", Review of Economics and Statistics, Vol. 68, February 1986, 156-159.
"Uber das Risikoverhalten in der Schweiz" (On  Behavior under Risk in Switzerland), Swiss Journal of Economics and Statistics, September 1986, 463-470.
"The Decision to Buy or Sell Insurance under Constant Relative Risk Aversion", The Geneva Papers on Risk and Insurance, Vol.12, 1987, 34-36.
"On the Stability of Relative Risk Aversion over Time", Essays in Memory of Irwin Friend, edited by Marshall Sarnat and Giorgio Szego, North-Holland, Amsterdam, 1988, 113-121.
"Risk Aversion and Demand for Insurance", Studies in Banking and Finance, Vol. 6, 1988, 1-125.
"Risk Aversion as a Function of Variance and Skewness", in Chican et al. (Eds), Progress in Decision, Utility, and Risk Theory, Kluwer Academic Publishers, Doordrecht, 1991, 355-363.
"Insurance Buying Gamblers", Theory and Decision, Vol. 32, 1992, 203-207.