Browsing by Author "Koch, Steven F."

Browsing by Author "Koch, Steven F."

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  • Love and addiction : the importance of commitment 
    Koch, Steven F. (University of Pretoria, Department of Economics, 2005-12)
    The bilaterally monopolistic nature of relationships between partners, combined with the addictive nature of love, which represents the emotion people feel during the course of a relationship, results in love growth when ...
  • Measuring energy poverty in South Africa based on household required energy consumption 
    Ye, Yuxiang; Koch, Steven F. (Elsevier, 2021-11)
    This study incorporates household energy needs into Foster–Greer–Thorbecke (FGT) based poverty measures to examine energy poverty in South Africa. Our household-specific energy poverty line is founded on the application ...
  • Modelling required energy consumption with equivalence scales 
    Ye, Yuxiang; Koch, Steven F.; Zhang, Jiangfeng (International Association for Energy Economics, 2022-11)
    Due to difficulties in accessing detailed energy modelling and usage data that are required to estimate energy needs that are responsive to local circumstances, we propose an equivalence scale approach to the determination ...
  • Non-tariff barriers faced by South African firms : are there any lessons? 
    Koch, Steven F.; Peet, Michael Andrew (Juta, 2007-12)
    Exports and export growth are cornerstones of South African economic development policy, although they are not explicitly mentioned in ASGISA. One implication of an export-orientated economy is that many of its exporters ...
  • On health insurance and household decisions : an econometric policy analysis 
    Koch, Steven F.; Alaba, Olufunke A. (University of Pretoria, Department of Economics, 2008-07)
    In developing countries, health insurance is not a commonly purchased financial instrument. Recent debates have revolved around extending health insurance coverage to a wider range of the population, primarily via compulsory ...
  • On the performance of fractional multinomial response models for estimating Engel curves 
    Koch, Steven F. (Routledge, 2015-06)
    Engel curves are often estimated within a linear, or at least approximately linear system of equations. However, Engel curves are required to lie on or within the unit interval, while summing to unity. These restrictions ...
  • Optimising beneficiary choices : standardisation of medical scheme benefit options 
    Nkomo, Phakamile W.F.; Koch, Steven F.; Thsehla, Evelyn M.M.; Willie, Michael M. (Health Systems Trust, 2019)
    Market segmentation analyses suggest that beneficiaries are confused by too many benefit options; that choice sets facing different beneficiaries are not the same; and that information is not equally accessible.
  • Progressivity of out-of-pocket payments and its determinants decomposed over time 
    Koch, Steven F.; Setshegetso, Naomi (Routledge, 2021)
    This study estimates progressivity of out-of-pocket (OOP) health payments and their determinants using South African Income and Expenditure Surveys. Concentration is decomposed to examine the effect of household determinants ...
  • Projecting the external health costs of a coal-fired power plant : the case of Kusile 
    Riekert, Johannes W.; Koch, Steven F. (Energy Research Insitute, University of Cape Town, 2012-11)
    We examine an important subset of the expected health costs associated with the commissioning of Kusile, a new coal-fired electricity generation plant in South Africa. The subset of health impacts focuses on sulphur ...
  • Property rights, institutions and choice of fuelwood source in rural Ethiopia 
    Beyene, Abebe Damte; Koch, Steven F. (Elsevier, 2013-05)
    This study examines the relationship between property rights, defined by land tenure security and the strength of local-level institutions, and household's preferences for fuelwood source. A multinomial regression model ...
  • Quasi-experimental evidence on tobacco tax regressivity 
    Koch, Steven F. (Elsevier, 2018-01)
    Tobacco taxes are known to reduce tobacco consumption and to be regressive, such that tobacco control policy may have the perverse effect of further harming the poor. However, if tobacco consumption falls faster amongst ...
  • Returns to schooling : skills accumulation or information revelation? 
    Koch, Steven F.; Ntege, S. Ssekabira (University of Pretoria, Department of Economics, 2008-06)
    This paper explores the degree to which imperfect information in the labour market regarding worker quality is likely to impact employment opportunities, as well as the wages associated with those opportunities. The primary ...
  • Semiparametric stochastic frontier analysis of specialist surgeon clinics 
    Koch, Steven F.; Slabbert, Jean D. (University of Pretoria, Department of Economics, 2010-09)
    A purposive sample of South African specialist surgeons was used to nonparametrically estimate production relations for single output and multiple output production processes. The analysis was further extended to ...
  • The South African financial cycle and its relation to household deleveraging 
    Bosch, Adel; Koch, Steven F. (Wiley, 2020-06)
    This paper considers the extent to which South African households have deleveraged, since the global financial crisis of 2007/2008. We extend the official South African Reserve Bank business cycle methodology to date ...
  • South African household expenditure patterns : alcohol products in 1995 and 2000 
    Ground, Marc; Koch, Steven F.; Van Wyk, Dylan (Sasol Library, University of the Free State, 2008)
    This research examines differences in household expenditure on alcohol between 1995 and 2000, the most recent years for which data is publicly available. The analysis reveals that both real expenditure on all alcohol ...
  • South African household expenditure shares : South African household data pitfalls 
    Koch, Steven F. (Bureau for Economic Research and the Graduate School of Business, University of Stellenbosch, 2007-04)
    Presents research on South African household expenditure share behaviour. Examines whether a theoretical and empirical model, which has been successful in explaining expenditure shares in Australia, is valid when applied ...
  • South African Journal of Economic & Management Sciences 
    Koch, Steven F. (2011-10-27)
    An overview of the South African Journal of Economic & Management Sciences and its current Open Access status.
  • The South African tax mix and economic growth 
    De Wet, Albertus Hendrik; Schoeman, N.J. (Nicolaas Johannes); Koch, Steven F. (Juta, 2005-06)
    The research reported in this paper suggests that government fiscal policy can influence economic growth through alterations in the tax mix and the overall size of government spending. The authors estimate the impact on ...
  • South African trends in medical aid coverage and stated healthcare-seeking preferences : 2004–14 
    Omotoso, Kehinde Oluwaseun; Koch, Steven F. (Routledge, 2017-08)
    Using population-weighted general household surveys (GHS) covering the years 2004–14, this study examines trends in medical aid coverage and healthcare facility utilisation across a spectrum of socio-demographic variables. ...
  • Stochastic frontier analysis of specialist surgeon clinics 
    Koch, Steven F.; Slabbert, Jean D. (Wiley-Blackwell, 2012-03)
    Stochastic frontier analysis was used to estimate the technical efficiency of specialist surgeon practices based in Gauteng Province, South Africa. The analysis was conducted for both single and multiple output production ...