Relationship between franking credits and the market risk premium: a comment

This paper examines two arguments presented in Gray and Hall (2006). First, that the generally used estimate of 0.06 for the market risk premium within the Officer version of the capital asset pricing model (CAPM) and the generally used estimate of 0.50 for the parameter 'gamma' within the Officer framework are jointly inconsistent with evidence concerning the market risk premium in the standard version of the CAPM. Second, that the first two of these parameter estimates are also jointly inconsistent with the observed cash dividend yield on the Australian market. To resolve these problems, Gray and Hall recommend setting gamma to zero. The present paper shows that the first argument does not account for the fact that imputation induces a reduction in the market risk premium as defined in the standard version of the CAPM. The present paper also shows that both arguments identify a problem that characterizes only parts of the Officer framework, and these parts are not generally used in Australia. Therefore, rather than suggesting that gamma should be zero, Gray and Hall's analysis identifies parts of the Officer framework that should be avoided. Copyright (c) The Authors.

Institutional Reforms to Enhance Urban Water Infrastructure with Climate Change Uncertainty

Climate change adds another layer of uncertainty to the complex issue of urban water infrastructure provision. Current institutional configurations surrounding infrastructure investments are deemed inflexible and ill-equipped to deal with climate uncertainty. This paper evaluates the regulatory and planning frameworks surrounding the urban water infrastructure provision in Victoria. Regulatory inflexibility, lack of clarity in the objectives of the water agencies and opaque supply augmentation policies constrain water businesses from making flexible infrastructure decisions. Future reforms need to focus on clarifying roles and objectives of water agencies, removing barriers to supply augmentation options including inter-sectoral transfers and a regulatory model that embeds flexibility in infrastructure decision processes

Urban water demand with fixed volumetric charging in a large municipality: the case of Brisbane, Australia *

This paper uses suburb-level quarterly data to model residential water demand in Brisbane, Australia, from 1998 to 2003. In this system, residential consumption is charged using a fixed annual service fee with no water entitlement followed by a fixed volumetric charge per kilolitre. Water demand is specified as average quarterly household water consumption and the demand characteristics include the marginal price of water, household income and size, and the number of rainy and warm days. The findings not only confirm residential water as price and income inelastic, but also that the price and income elasticity of demand in owner-occupied households is higher than in rented households. The results also show that weather, particularly summer months and the number of rainy days, exerts a strong influence on residential water consumption. Copyright Australian Agricultural and Resource Economics Society Inc. and Blackwell Publishing Ltd 2006.

Relationship between franking credits and the market risk premium

In a dividend imputation tax system, equity investors have three potential sources of return: dividends, capital gains and franking (tax) credits. However, the standard procedures for estimating the market risk premium (MRP) for use in the capital asset pricing model, ignore the value of franking credits. Officer (1994) notes that if franking credits do affect the corporate cost of capital, their value must be added to the standard estimates of MRP. In the present paper, we explicitly derive the relationship between the value of franking credits (gamma) and the MRP. We show that the standard parameter estimates that have been adopted in practice (especially by Australian regulators) violate this deterministic mathematical relationship. We also show how information on dividend yields and effective tax rates bounds the values that can be reasonably used for gamma and the MRP. We make recommendations for how estimates of the MRP should be adjusted to reflect the value of franking credits in an internally consistent manner. Copyright (c) The Authors Journal compilation (c) 2006 AFAANZ.

Urban water management: optimal price and investment policy under climate variability *

Australian urban water utilities face a significant challenge in designing appropriate demand management and supply augmentation policies in the presence of significant water scarcity and climate variability. This article considers the design of optimal demand management and supply augmentation policies for urban water. In particular, scarcity pricing is considered as a potential alternative to the predominant demand management policy of water restrictions. A stochastic dynamic programming model of an urban water market is developed based on data from the ACT region. Given a specification of the demand and supply for urban water state dependent optimal price and investment policies are estimated. The results illustrate how the optimal urban water price varies inversely with the prevailing storage level and how the optimal timing of investment differs significantly between rain dependent and rain independent augmentation options. Copyright 2009 The Authors. Journal compilation 2009 Australian Agricultural and Resource Economics Society Inc. and Blackwell Publishing Asia Pty Ltd.

Lessons learned from renewable electricity marketing attempts: a case study

The choice of subscribing to renewable electricity has been available to Australian households for more than a decade, yet consumer uptake remains low for some green marketers. This case study uses a retailer's perspective to examine the implementation of a green marketing program for a renewable electricity retailer. Based on interviews, internal company documentation, and secondary research, findings show that effective differentiation for renewable energy is required to increase consumer involvement levels and the likelihood of consideration. While consumers lack understanding of, and interest in, renewable energy, the marketing program relied on customers to seek information. It was apparent the success of green marketing programs depends on the integration of education into a carefully targeted marketing program emphasizing functional and emotional values to differentiate renewable energy and simplify consumer decision-making processes