Sök

Maximum Likelihood Estimation of Asymmetric Double Type II Pareto Distributions

PublikationArtikel (med peer review)
Daniel Halvarsson, Distribution Theory, Double Pareto Distribution, Firm growth, Maximum Likelihood

Sammanfattning

This paper considers a flexible class of asymmetric double Pareto distributions (ADP) that allows for skewness and asymmetric heavy tails. The inference problem is examined for maximum likelihood. Consistency is proven for the general case when all parameters are unknown. After deriving the Fisher information matrix, asymptotic normality and efficiency are established for a restricted model with the location parameter known. The asymptotic properties of the estimators are then examined using Monte Carlo simulations. To assess its goodness of fit, the ADP is applied to companies’ growth rates, for which it is favored over competing models.

Halvarsson, D. (2020). Maximum Likelihood Estimation of Asymmetric Double Type II Pareto Distributions. Journal of Statistical Theory and Practice, 14(22).


Liknande innehåll

Firms’ responses to private- and government sponsored venture capital
RapporterPublikation
Gustavsson Tingvall, P., Halvarsson, D., & Engberg, E.
Publiceringsår

2017

Publicerat i
Sammanfattning

There is major political interest in promoting enterprise, entrepreneurship and economic growth, and the same goes for the significance of capital provision in this context However, interest on the part of society in facilitating small and medium-sized companies’ financing situation is far from new.

This report analyses actual outcomes of government and private venture capital investments (venture capital, VC) and real effects on employment, turnover and investments in real capital in portfolio companies. It also examines whether the effects differ between government and private VC, and which companies and phases the public actors invest in compared with the private actors.

The results do not demonstrate any dramatic differences between public and private VC investors in terms of growth effects, even though there are some tendencies towards a stronger growth effect via private venture capital. Further, the public VC companies do not differ from private investors when it comes to their propensity to invest in the earliest phases. A somewhat surprising result as it is the lack of venture capital in the earliest phases which is often used as an argument to justify the government’s role as an actor in the VC market. The public VC companies also seem to be more disposed to stay the course with, and continue to invest in, stagnant companies which do not take off and grow.

Working paper No. 281: Entrepreneurship and Income Inequality
Working paperPublikation
Halvarsson, D., Korpi, M., & Wennberg, K.
Publiceringsår

2016

Publicerat i

Ratio working Paper

Sammanfattning

Entrepreneurship research highlights individual entrepreneurship as a simultaneous source of enhanced income mobility for some but a potential source of poverty for others. Research on inequality has furthered new types of models to decompose and problematize various sources of income inequality in modern economies, but attention to entrepreneurship as an increasingly prevalent occupational choice in these models remains scant. This paper seeks to bridge these two literatures by applying regression-based income decomposition among entrepreneurs and paid workers, distinguishing between self-employed (SE) and incorporated self-employed (ISE) individuals in Sweden. We find that the proportion of self-employed in the workforce significantly increases income dispersion by way of widening the bottom end of the distribution, whereas the proportion of incorporated self-employed contributes only marginally to income dispersion at the top end of the distribution.

Working paper No. 288: Direct and Indirect Effects of Private- and Government Sponsored Venture Capital
Working paperPublikation
Engberg, E., Halvarsson, D., & Tingvall, P.
Publiceringsår

2017

Publicerat i

Ratio Working Paper

Sammanfattning

This paper studies the real effects of venture capital on targeted firms. Specifically, using a unique dataset with comprehensive information on private- and governmental venture capital investments, we examine the effects of such investments on firms’ sales, employment and investments in physical capital. The results suggest that both private and public venture capital boost firm sales two to three years after the investment. The sales increase can, in turn, partially be traced to an investment effect, and partially to increased efficiency, whereas no employment effects are found. Finally, our findings suggest that government investors are more prone than private VC firms to make follow-up investments in stagnating non-growing firms.

Visa fler

Ratio är ett fristående forskningsinstitut som forskar om hur företagandets villkor kan utvecklas och förbättras.

Sveavägen 59 4trp

Box 3203

103 64 Stockholm

Postgiro: 382621-1

|

Bankgiro: 512-6578