Log in

Precise large deviations for sums of random vectors with dependent components of consistently varying tails

  • Research Article
  • Published:
Frontiers of Mathematics in China Aims and scope Submit manuscript

Abstract

Let {X i = (X 1,i ,...,X m,i ), i ≥ 1} be a sequence of independent and identically distributed nonnegative m-dimensional random vectors. The univariate marginal distributions of these vectors have consistently varying tails and finite means. Here, the components of X 1 are allowed to be generally dependent. Moreover, let N(·) be a nonnegative integer-valued process, independent of the sequence {X i , i ≥ 1}. Under several mild assumptions, precise large deviations for S n = Σ i=1 n X i and S N(t) = Σ i=1 N(t) X i are investigated. Meanwhile, some simulation examples are also given to illustrate the results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (France)

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Baltrūnas A, Leipus R, Šiaulys J. Precise large deviation results for the total claim amount under subexponential claim sizes. Statist Probab Lett, 2008, 78: 1206–1214

    Article  MathSciNet  MATH  Google Scholar 

  2. Bingham N H, Goldie C M, Teugels J L. Regular Variation. Cambridge: Cambridge Univ Press, 1987

    Book  MATH  Google Scholar 

  3. Cline D B H, Samorodnitsky G. Subexponentiality of the product of independent random variables. Stochastic Process Appl, 1994, 49: 75–98

    Article  MathSciNet  MATH  Google Scholar 

  4. Embrechts P, Klüppelberg C, Mikosch T. Modelling Extremal Events for Insurance and Finance. Berlin: Springer-Verlag, 1997

    Book  MATH  Google Scholar 

  5. Kaas R, Tang Q. A large deviation result for aggregate claims with dependent claim occurrences. Insurance Math Econom, 2005, 36: 251–259

    Article  MathSciNet  MATH  Google Scholar 

  6. Klüppelberg C, Mikosch T. Large deviations of heavy-tailed random sums with applications in insurance and finance. J Appl Probab, 1997, 34: 293–308

    Article  MathSciNet  MATH  Google Scholar 

  7. Lu D. Lower bounds of large deviation for sums of long-tailed claims in a multi-risk model. Statist Probab Lett, 2012, 82: 1242–1250

    Article  MathSciNet  MATH  Google Scholar 

  8. Nelsen R B. An Introduction to Copulas. New York: Springer, 2006

    MATH  Google Scholar 

  9. Ng K W, Tang Q, Yan J, Yang H. Precise large deviations for the prospective-loss process. J Appl Probab, 2003, 40: 391–400

    Article  MathSciNet  MATH  Google Scholar 

  10. Ng K W, Tang Q, Yan J, Yang H. Precise large deviations for sums of random variables with consistently varying tails. J Appl Probab, 2004, 41: 93–107

    Article  MathSciNet  MATH  Google Scholar 

  11. Shen X, Tian H. Precise large deviations for sums of two-dimensional random vectors with dependent components heavy tails. Comm Statist Theory Methods, 2016, 45(21): 6357–6368

    Article  MathSciNet  MATH  Google Scholar 

  12. Tang Q, Su C, Jiang T, Zhang J. Large deviations for heavy-tailed random sums in compound renewal model. Statist Probab Lett, 2001, 52: 91–100

    Article  MathSciNet  MATH  Google Scholar 

  13. Wang S, Wang W. Precise large deviations for sums of random variables with consistently varying tails in multi-risk models. J Appl Prob, 2007, 44: 889–900

    Article  MathSciNet  MATH  Google Scholar 

  14. Wang S, Wang W. Precise large deviations for sums of random variables with consistent variation in dependent multi-risk models. Comm Statist Theory Methods, 2013, 42: 4444–4459

    Article  MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to **nmei Shen.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Shen, X., Niu, Y. & Tian, H. Precise large deviations for sums of random vectors with dependent components of consistently varying tails. Front. Math. China 12, 711–732 (2017). https://doi.org/10.1007/s11464-017-0635-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11464-017-0635-2

Keywords

MSC

Navigation