Subsistence consumption and natural resource depletion: Can resource-rich low-income countries realize sustainable consumption paths?

This contribution is concerned with efficient use of a resource if households are characterized by Stone–Geary preferences with a minimum subsistence level of consumption. Subsistence consumption implies particular minimum requirements for initial endowments with reproducible man-made capital and resources. If these are not met, the economy is not able to cover subsistence consumption such as nutrition. Focusing on the steady state, we find that the equilibrium can be governed by zero or positive growth. The latter occurs if the rate of exogenous technical change exceeds the rate of time preference. In the former case, we can show that Hartwick’s investment rule applies in a steady state. Finally, we calibrate the model for developing but resource-rich countries and trace the full dynamic development of the economy. Furthermore, we evaluate this full adjustment process regarding several sustainability indicators.     

Can sticky consumption cause business cycles?

Sticky aggregate consumption is a demonstrable phenomenon in economies throughout the world, but to our knowledge it has not yet been incorporated into capital structure macroeconomics. Doing so suggests an explanation for business cycles. On the heels of a technological advance, sticky consumption facilitates increased savings and lower real interest rates. These lower rates lead to accelerating elongations in the capital structure. Even though such elongations facilitate more rapid economic growth, if duplicative overinvestment in research and development occurs, economic contraction will follow the exposure of such error.     

How does consumption change upon retirement?

In this paper, we investigate the way consumption changes around retirement in Italy. Using micro data covering the 1985–1996 period, we document the existence of a one-off drop in consumption at retirement of the household head, as in the UK and the US, but (at 5.44%) smaller in size, and show that consumption of work-related goods falls around retirement and home production of food and other goods increases.     

Does consumption inequality track income inequality in Italy?

This paper presents stylized facts on labor supply, income, consumption, wealth, and several measures of consumption and income inequality drawn from the 1980–2006 Survey of Household Income and Wealth (SHIW) conducted by the Bank of Italy. The SHIW provides information on consumption, income and wealth, and a sizable panel component that allows econometricians to estimate sophisticated income, consumption, and wealth processes and to analyze labor market and portfolio transitions. We find that over the sample period income inequality is higher and has grown faster than consumption inequality. Most of the increase in income inequality is related to an increase in the degree of earnings' instability rather than to shifts in the wage structure. We suggest that, in particular, the labor market reforms of the 1990s and 2000s are the most plausible explanation of the increased earnings inequality.     

How much does water consumption drop when each household takes charge of its own consumption? The case of the city of Seville

Making individuals take charge of their own domestic water consumption is one of the measures used to reduce the growing demand for this resource and to achieve sustainable consumption compatible with the goal of equity. The use of individual meters instead of communal meters and fixing tariffs by inhabitant rather than by household are two measures aimed at achieving these objectives. This article assesses the measures put in place in the Seville metropolitan area during the last 20 years with an unobserved component model set up in a state-space framework estimated using maximum likelihood. Water consumption elasticity to individual meters has changed from –0.307 to –1.317 with the introduction of per inhabitant tariffs, which demonstrates that there are water-saving synergies when the two measures are implemented together. The reductions in water consumption achieved with these measures are also longer lasting than the changes in consumption habits during the frequent droughts in Seville.     

Is all domestic water consumption sensitive to price control?

This paper presents a model of residential water demand based on the Stone–Geary utility function, which explicitly considers a threshold of water that is insensitive to price and a quantity that can adapt instantaneously to price changes. First, the threshold is assumed constant, being then allowed to vary according to past levels of consumption, a proxy for households' water-using equipment and habits. A measure of the depreciation rate of habits is derived and the effectiveness of price and non-price conservation measures are compared. The results provide useful policy recommendations for the studied case of Seville (Spain).     

The way of improve the ability of residents＇ consumption

提高居民消费力是目前我国适应国内买方市场全面形成、应对世界金融危机和欧债危机、扩大国内需求和驱动经济增长的必然选择。切实提高居民消费力使居民消费成为经济增长的主要驱动力需要我国企业和政府协力合作、双管齐下。企业要善于唤起居民消费需求、刺激居民消费欲望和创造居民消费需求,政府要努力提高居民收入水平、稳定居民消费价格和增强居民消费信心。     

How important are wealth effects on consumption in Canada?

We estimate the marginal propensity to consume from financial and housing wealth in Canada. The modelling framework of Carroll et al. (2011) that builds on the observed stickiness in consumption data is used. Estimations and inferences are conducted using identification‐robust methods. The results provide support for the overall modelling strategy, but there are also important differences in the identification status of the econometric equations considered. Based on the most informative specification, we find that both types of wealth—financial and housing—have significant effects in Canada and that the former has a greater effect than the latter. A simple extension of the model that also accounts for non‐price credit conditions shows that housing wealth may be relevant only during periods of easier access to credit. Finally, we find support for relatively high stickiness in consumption growth in Canada.     

Does consumption buy happiness? Evidence from the United States

We examine the association between various components of consumption expenditure and happiness in the Health and Retirement Study (HRS), a nationally representative sample of older Americans. We find that only one component of consumption is positively related to happiness—leisure consumption. In contrast, consumption of durables, charity, personal care, food, health care, vehicles, and housing are not significantly associated with happiness. Second, we find that leisure consumption is associated with higher levels of happiness partially through its effect on social connectedness, as indexed by measures of loneliness and embeddedness in social networks. On one hand, these results counter the conventional wisdom that “material goods can’t buy happiness.” One the other hand, they underscore the importance of social goods and social connectedness in the production of happiness.     

Why does consumption fall at retirement? Evidence from Germany

Analyzing the consumption behavior over retirement in Germany, this paper finds a negative correlation between income replacement and the increase in home-production-related activities. This might reconcile the observed drop in consumption at retirement with the predictions of the standard life cycle model. However, since individuals with fairly stable income over retirement also increase home production, this increase cannot be entirely attributed to a substitution effect.     

More or better? Measuring quality versus quantity in food consumption

As people become richer they get the opportunity of consuming more but also qualitatively better goods. This holds for a basic commodity like food as well. We investigate food consumption in Russia, taking into account both expenditure and nutrition value in terms of calories. We analyse how food consumption patterns change with increasing income by considering both “quantity Engel curves” and “quality Engel curves.” The former describe the functional dependence of calories consumed on total expenditure. The latter trace out the dependence of unit value per calorie on total expenditure. We compare income elasticities of quantity with income elasticities of unit value and quality. In Russian household survey data for years 2000–2002 the reaction of quality to income changes is significantly stronger than the reaction of quantity to income changes suggesting that Russian households tend to choose higher quality food items as income rises.     

Can sustainable consumption be learned? A model of cultural evolution

This paper shows how sustainable consumption patterns can spread within a population via processes of social learning even though a strong individual learning bias may favor environmentally harmful products. We present a model depicting how the biased transmission of different behaviors via individual and social learning influences agents' consumption behavior. The underlying learning biases can be traced back to evolved cognitive dispositions. Challenging the vision of a permanent transition toward sustainability, we argue that “green” consumption patterns are not self-reinforcing and cannot be “locked in” permanently.     

Can consumption habit spillovers be a source of equilibrium indeterminacy?

This paper investigates whether the external consumption habit can be a source of indeterminacy in a one-sector growth model when the labor supply is elastic. When there is a proper habit effect with a positive intertemporal elasticity of substitution, we find that the model exhibits indeterminacy if the coefficient of the habit formation is sufficiently large that allows for a substantial impact of current consumption on the habit. Indeterminacy arises even though the elasticity of the Frisch labor supply is positive and the elasticity of the labor demand in negative. In a calibrated version, we find that indeterminacy is empirically plausible when the habit effect is negative that features the “catching up with the Joneses” effect. Under given “catching up with the Joneses” effects, the external consumption habit can be a source of indeterminacy even if more than a half of the external consumption habit comes from past average consumption.     

Ecological footprint of food consumption in China：1982-2004

This paper calculates the land （including water area） requirement for food consumption in both balanced andactual diet in China by ecological footprint analysis. To determine whether logical and actual food demands are withinnatural regenerative ability, carrying capacity （excluding forestry production） is also calculated. Results show that actualdiet patterns were ecologically friendly in the period of 1982-2004 in China, mainly because of the rural moderate dietpatterns. But actual per capita footprint already overran its corresponding logic value of 0.976ha in urban areas in 2002.Productive areas for food production can satisfy the land requirement for actual diet patterns during the researchingperiod in China, nevertheless cannot satisfy that for balanced diet pattern or solve the problem of unbalanced ecologicalfootprint. The continual rising ecological footprint of food consumption in both rural and urban areas indicates that percapita footprint will keep on increasing in China and even may be more than the suggested logic value if no relevantcountermeasures are made to regulate diet patterns. Strictly speaking, China is facing food shortage, both in quality andin quantity.     

Does defence expenditure affect private consumption? Evidence from the United States

This paper empirically discusses the relationship between government defence expenditure and private consumption for the United States. The estimations show a substitution or complementary effect of the military sector on private categories of consumer choices, although sensitivity analysis for different utility functions and sub-samples indicates a time-decrease on substitutability. Our findings are in line with previous results highlighting a weak substitution of defence expenditure on aggregate consumption.     

Can consumption of convenience products reveal the opportunity cost of time?

I examine how people’s consumption of time-saving products can be used to estimate the shadow value of time. I use a household production model to motivate an empirical approach that can be implemented using survey data.     

An econometric analysis of urban households’ animal products consumption in Turkey

People in developing countries are increasing their consumption from the very low levels of the past, and they have a long way to go before coming near developed country averages. In this study, households’ animal products consumption patterns are analysed by using Linear Approximation of Almost Ideal Demand System (LA/AIDS) and survey data collected from households in urban areas in Turkey. According to the results of the study, annual per capita consumption of animal products were 48.18?kg for milk, 26.89?kg for yogurt, 18.55?kg for cheese, 6.45?kg for meat, 22.11?kg for poultry and 10.05?kg for fish. Price elasticities were found to be lower than 1 for milk, yogurt, cheese, poultry and fish and higher than 1 for meat. Moreover, the impacts of socio-demographic factors on the demand for animal products were found to be very low. Determination of production targets and formulation of polices are possible by obtaining the proper information related to the livestock products.     

What explains consumption in the very short-run? Evidence from checking account data

This paper investigates consumption behavior within an intertemporal optimization model of the representative household. Our dataset consists of deposits and withdrawals from individual household checking accounts that received paychecks by direct deposit. We construct samples of panel data for households with weekly, biweekly, and semi-monthly pay-periods and form two different measures of consumption for each sample. GMM estimates of structural parameters provide mixed evidence for habit formation or durability and limited support for the permanent income hypothesis. The results instead point to “rule of thumb” consumption under liquidity constraints, where the household consumes its current disposable income each pay-period with possible debt servicing. These findings are uniform with regard to estimation of sub-samples split according to age or household income.     

Will the consumption externalities' effects in the Ramsey model please stand up?

According to the prior literature, in a Ramsey model, consumption externalities have no impact on steady state behavior, once labor supply is exogenous. In contrast, this paper argues that — in the presence of technical change — consumption externalities always affect steady state behavior, via their impact on the elasticity of marginal utility of consumption.