Food away from home expenditures and obesity among older Europeans: are there gender differences?

Older people (i.e., at least 50?years of age) are becoming one of the most important demographic groups in the world. We explore the effect of food away from home expenditures on obesity among the older population in Europe using instrumental variable methods. Several statistical tests were conducted to assess endogeneity of selected variables, the exogeneity, relevance, and validity of instruments used. Our results generally suggest that food-away-from-home expenditure has no statistically significant effect on body mass index (BMI) of older males but is negatively related to BMI of older females.     

Method and analysis in Piero Sraffa's 1925 critique of Marshallian economics

This paper provides an analysis of the logical structure and analytical content of Piero Sraffa's 1925 Italian paper, ‘Sulle relazioni fra costo e quantità prodotta’. It shows that Sraffa's criticism of the supply side of Marshall's theory of value in a competitive partial equilibrium model involves analytical and methodological issues. Endorsing an agressive methodology Sraffa logically reconstructs Marshall's model on variable returns to determine its empirical domain. He demonstrates that the latter encompasses only the empirically irrelevant cases of specific factor industries and specific external economies industries and that it cannot be generalized to non-specific factor industries and to non-specific external economies industries.     

An appraisal of Piero Sraffa's 'The Laws of Returns under Competitive Conditions'

The paper proposes a new interpretation of Sraffa's 1926 Economic Journal article, ‘The Laws of Returns under Competitive Conditions’, according to which the latter derives from the same strategy of research which underlies its 1925 Italian precursor, ‘Sulle relazioni fra costo e quantità prodotta’. Sraffa tested the explanatory power of a Marshallian monopolistic partial equilibrium model and concluded that that model is able to treat one source of variable returns (firm-internal economies); but this articulation of Marshall‘s theory does not substantially improve on the trade-off between logical consistency and empirical relevance which afflicted the theory in its whole.     

Consumption patterns,development and growth: Adam Smith,David Ricardo and Thomas Robert Malthus

In this paper we combine the classical analysis of luxury consumption with the classical theories of development and growth. We also focus on the role played, within classical economics, by institutional factors such as the structure of property rights and contractual arrangements in determining consumption patterns and investment in agriculture. In particular, we show that Ricardo's and Malthus' different views on the role of consumption expenditure in promoting growth depend on Ricardo's acceptance (Malthus' refusal) of Say's law of markets and on Ricardo's exclusion (Malthus' inclusion) of a non-commodity option such as leisure from (in) the range of available consumption alternatives.     

Incentivizing Vegetable Consumption in School-Aged Children: Evidence from a Field Experiment

We conducted a field experiment to test the effect of nonmonetary incentives in increasing children's vegetable consumption during lunch at school. We measured children's daily vegetable consumption for four consecutive weeks prior to the provision of incentives, for four consecutive weeks during the incentive provision, and for three consecutive weeks right after the provision of incentives. To check the longer-term effect of the incentive provision, we measured children's daily vegetable consumption 11 weeks after the postintervention period. Results suggest that the incentives are effective in increasing vegetable consumption and that this effect persisted several weeks after the provision of the incentives ended. This is an important topic since gaining a better understanding of effects of nonmonetary incentives can help in the design of nutrition and health policies aimed at improving the dietary behavior of children and potentially reducing childhood obesity.     

Consumers' Valuation of Geographical Indication‐Labeled Food: The Case of Hom Mali Rice in Bangkok*

This study investigated consumers' valuation of geographical indication (GI) and protected geographical indication (PGI)‐labeled rice in Bangkok using a non‐hypothetical experimental auction in a field setting. We also examined the effects of sequentially providing information about geographical indications on product valuation. The results suggest that consumers are willing to pay premiums for rice with geographical certifications, with the highest premium for the rice with both GI and PGI certifications. The provision of detailed information about the geographical indications further increases the premiums. However, consumers suffer a welfare loss under the current high market prices for rice with geographical certifications. A price reduction of approximately 10 percent would be needed to gain consumer welfare from the introduction of GI and PGI certification.     

Complexity traits and synchrony of cryptocurrencies price dynamics

Decisions in Economics and Finance - In this study, we characterized the dynamics and analyzed the degree of synchronization of the time series of daily closing prices and volumes in US$ of three...     

Effect of substitutes in contingent valuation for a private market good

Economic theory predicts a decrease in valuation as the availability of substitutes increases. This paper describes a contingent valuation (CV) survey that investigates the effect of substitutes on valuation of private market goods. Using an approach that compares willingness to pay (WTP) values elicited from a CV question that accounts for substitutes with WTP values elicited from a similar question without substitutes, we find that allowing for substitutes can moderate WTP values. For the item valued in this study, a hamburger sandwich, allowing for substitutes was associated with a reduction of from 10% to 16% in stated values.