In this paper we present an empirical study of a supermarket supply chain to understand the determinants of prices and profits enjoyed by farmers, processors, and supermarkets. We study the liquid milk market which has seen much controversy about both the distribution of rents and the mechanisms firms have used to influence the distribution. We discuss insights from a series of interviews we co…

On 30 April 1815, Napoleon surprisingly called municipal elections in all communes with a population of under 5000. These elections have been little written about and less researched. Yet, as the most inclusive and extensive elections between the 1790s and 1848, they offer a unique vantage point for the observation of mass electoral behaviour. In the absence of summary results, they can only be…

Tahun Terbit

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We use the Dandelin–Gallucci theorem to give a proof of Wedderburn’s little theorem that every finite division ring is commutative, and the proof is geometric in the sense that the non-geometric concepts employed are of an elementary nature. As a consequence, we obtain a geometric proof that a finite Desarguesian projective space is Pappian.

Tahun Terbit

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This article proposes a notional defined contribution (NDC) mechanism to ensure pension mobility for the 150 million migrating workers in China during both the accumulation and drawdown phases. Planned governance would ensure independence from the three existing pension systems. An appropriately structured NDC plan of this type is shown to be viable by reference to a previously developed model …

Tahun Terbit

2012

In this article we estimate a state-contingent production frontier for a group of farms while endogenously estimating the number of states of nature induced by unobserved environmental variables. This estimation is conducted by using a birth-death Markov chain Monte Carlo method. State-contingent output is estimated conditioned on an observed input vector and an a priori unknown number of unobs…

We propose a new three-step model-selection framework for size distributions in empirical data. It generalizes a recent frequentist plausibility-of-fit analysis (step 1) and combines it with a relative ranking based on the Bayesian Akaike information criterion (step 2). We enhance these statistical criteria with the additional criterion of microfoundation (step 3), which is to select the size …

Tahun Terbit

2013