The ‘trendiness’ of sleep: an empirical investigation into the cyclical nature of sleep time

Using Canadian time use data, we exploit variation in local unemployment rates to investigate the cyclical nature of sleep time and show that for both men and women, sleep time decreases when the economy is doing relatively better. Our results suggest that in a recession Canadians sleep an average of 3 h more per week, or 26?min more per day. Given the importance of even small changes in sleep time on measures of cognitive functioning such as reaction time and concentration, our findings may help explain the countercyclical nature of mortality. Further, as we find that sleep is affected by the same economic variables (notably the unemployment rate) that affect market work time, our results also contribute to the limited literature that shows that sleep time should not be treated as exogenously determined, but, like any other resource, determined by its relative cost.     

The ‘curse of dimensionality’ resolved: The effects of climate change and trade barriers in large dimensional modelling

Solving large scale optimisation problems over space and time quickly generates a computational impasse, termed the ‘curse of dimensionality’. This severely limits the practical use of economic models, especially for determining the effects of climate change and protectionist trade policies. In this paper, we employ an innovative approach to solving (otherwise unsolvable) large scale systems through the use of parallel processing methods and a proper ordering of variables and equations in a ‘Nested Doubly Bordered Block Diagonal’ form. We illustrate how the approach can be used to solve an intertemporal CGE model with more than 500 million equations. Using existing damage functions, the framework allows us to determine the impact of climate change on long-run economic growth for 112 countries as a result of the effect of sea-level rise on land endowments, variation in crop yields and productivity and shifts in the demand for energy and transportation. We also compare our solution to more common (and smaller dimensional) recursive methods, in terms of both the economic effects of climate change and potential increases in trade barriers, showing the power and efficiency of our computational approach and parallel processing routine.     

Marginal WTP and Distance Decay: The Role of ‘Protest’ and ‘True Zero’ Responses in the Economic Valuation of Recreational Water Quality

We evaluate the sensitivity of distance decay in individuals’ stated willingness to pay (WTP) for water quality improvements in eutrophied lakes. We extend the standard model of contingent valuation (CV) by allowing individuals to adopt a sequential evaluation process consisting of two decision stages. In the first stage respondents decide whether they are ‘protesters’, have a WTP   \(=\)   ‘true zero’ or a \(\hbox {WTP}>0\) . Conditioned on a strictly positive WTP, we use Lee’s selectivity-corrected model to determine the magnitude of their WTP in the second stage. Using CV survey data from Norway we find significant distance decay in the first stage classification of respondents as ‘protesters’, ‘true zero’ WTP, or positive WTP. In the second stage model for positive WTP responses, we find little or no significant relationships when correcting for selection. Results suggest that previous findings of significant distance decay in contingent valuation of lake and river water in Europe may be driven by the definition of ‘protest’ and ‘true zero’ respondents. We find that WTP for water quality may be more useful as a qualitative indicator of political support for user financed water quality measures, than as a cardinal measure of marginal utility of water quality improvements.     

The Geo-Social and Global Geographies of Power: Urban Aspirations of ‘Worlding’ African Students in China

This paper conceptualises the geosocial by examining the transnational connections of African student migrants and their educational experiences in Chinese cities. While there is now an established scholarship on Chinese migration to Africa, new research on the concurrent flow of African migration to China is emerging. Recent publications on African migrants in China tend to focus on the experiences of African traders, drawing out issues of illegality, ‘low-end’ globalisation and their impacts on Chinese trading cities. In comparison, this paper shifts the analytical lens to African educational migration in Chinese cities, foregrounding how global householding patterns reflect and leverage on the geopolitical and geo-economic dimensions of China-Africa relations. The paper shows that individual and family goals are negotiated through educational migration that, on the one hand, is concerned with accumulating human and cultural capital through a learning stint in Chinese cities, and on the other hand, is framed by perceptions of China-Africa relations. The paper argues that through educational migration, transnational social reproduction links Africa with China, but the social differentiation and everyday sociality that the African students experience in Chinese cities reinforce racial coding and development asymmetries. In so doing, the paper draws out how the geosocial reflects and constitutes the geopolitical and geo-economic dimensions of transnationalism.     

The Dixit–Stiglitz economy with a ‘small group’ of firms: A simple and robust equilibrium markup formula

In a general version of Dixit–Stiglitz two-sector economy, we present three variants of the concept of oligopolistic equilibrium in price-quantity pairs (d’Aspremont and Dos Santos Ferreira, 2016) integrating income feedback effects in three different ways. For the first two variants (Ford effects ignored or restricted to profits), a single and simple equilibrium markup formula is derived involving, for each firm, a conduct parameter indicating its degree of competitive toughness. Different specifications of these conduct parameters lead to different oligopolistic equilibria in prices and/or in quantities. In particular in the standard Dixit–Stiglitz economy, we show, that the first order conditions of a symmetric oligopolistic price equilibrium correspond to a unique degree of competitive toughness in the general markup formula, This degree is decreasing (and the markup increasing) as more feedback effects are taken into account by firms. On the contrary, for the third variant, introducing full Ford effects leads to lower markups and higher competitive toughness in the standard Dixit–Stiglitz economy and under conditions ensuring the equilibrium markup to remain in tne right interval,     

Stabilizing consumer choice: the role of ‘true dynamic stability’ and related concepts in the history of consumer choice theory

Abstract

It is often argued that the inability of Arrow–Debreu general equilibrium theory to produce an adequate proof of the stability of the Walrasian price adjustment mechanism was one of the program's most significant failures. This paper will not question this standard interpretation of the history of general equilibrium theory, but makes the case that characterizing the ‘stability’ question in terms of market stability– in particular the stability of the equilibrium price vector in the Walrasian general equilibrium model – actually helped to stabilize the standard model of consumer choice in general equilibrium theory and elsewhere within microeconomics. The problem of the stability of ‘consumer's equilibrium’ was much discussed early in the twentieth century, and it has recently re-emerged in a different guise as the ‘endowment effects’ and ‘reference dependencies’ of contemporary behavioral economics, and yet it disappeared from mainstream discussion during the period 1950 to 1980. This paper argues that shifting the discussion from the intra-agent stability of the individual consumer to the inter-agent stability of the competitive market contributed – despite its ultimately negative impact on general equilibrium theory – to the long period of stable normal science consumer choice theory enjoyed during the middle of the twentieth century.     

Voter turnout and the principle of ‘one person,one vote’: empirical evidence from the constituency freeze in India

This article uses panel data from national and state elections in India during the period 1977–2007 to examine the effect of inequality in constituency population size on voter turnout. During this period, constituency boundaries in India remained fixed. As a result, differences in population size between constituencies increased, thus changing the value of a single vote. Using this large variation in population size and informative data, this article carefully distinguishes the effect of population size from other factors. We find that an increase of one million electorates decreases voter turnout by 12–27%. In addition, we find that the share of votes gained by national political parties is greater in small-population constituencies. This suggests that political parties direct their efforts in electoral campaigns preferentially to less populous constituencies; as a result, voters in small constituencies are more likely to participate in elections.     

An Investigation into the Positive Effect of an Educated Wife on Her Husband’s Earnings: The Case of Japan in the Period between 2000 and 2003

We analyze the effect of a wife??s human capital on her husband??s earnings, using individual-level data for Japan in the period 2000?C2003. We find a positive association between a wife??s education and her husband??s earnings, which can be attributed to the assortative mating effect as well as the positive effect of an educated wife on her husband??s productivity. We divide the sample into those couples with non-working wives and those with working wives, and also employ an estimation strategy proposed by Jepsen (Review of Economics of the Household 3:197?C214, 2005), attempting to control for the assortative mating effect. Our regression analysis provides suggestive evidence that educated wives increase their husbands?? productivity and earnings only when they are non-workers and have sufficient time to support their husbands.     

The improvement trajectory of PCR DNA replication and ERP software as general purpose technologies: an exploratory study of ‘anchor technologies’

As an effort to peek into the black box of large-scale general purpose technologies (GPTs) like biotechnology and information technology, we develop the concept of ‘anchor technologies’. An anchor technology is a core technology of a large-scale GPT (‘mega-GPT’) that opens a new era in the development and diffusion of the mega-GPT. We trace the historical evolution of two process-based, yet otherwise very different, anchor technologies: enterprise resource planning (ERP) software within the mega-GPT of information technology and polymerase chain reaction (PCR) DNA replication within the mega-GPT of biotechnology. The case studies reveal the utility of ‘productisation’ as an important means of commercialising innovations in anchor technologies; more generally, the interplay between improvement in process-based technologies and in complementary product-based technologies provides insight into how ERP and PCR were able to sustain a path of continued improvement within their respective mega-GPT.     

The Transatlantic Trade and Investment Partnership and the Role of Computable General Equilibrium Modelling: An Exercise in ‘Managing Fictional Expectations’

Negotiations between the world's two largest trading partners, the European Union (EU) and the USA, on a Transatlantic Trade and Investment Partnership (TTIP) have been ongoing since July 2013. Anticipating the controversy the agreement has sparked, EU trade policy-makers in the European Commission have put considerable effort into discursively framing the agreement on their terms. Drawing on computable general equilibrium (CGE) models of the agreement's likely impact, the central claim has been that the TTIP promises to deliver much-needed ‘growth and jobs’ without stretching the public purse at a time of austerity. Our main argument in this article, drawing on the insights of the economic sociologist Jens Beckert, is that these CGE models – and the figures they have produced – represent an important exercise in ‘managing of fictional expectations’. The models make overly optimistic predictions about the ability of the EU and the USA to eliminate regulatory barriers to trade – which are unlikely to be realised in the face of considerable political opposition – and also downplay the potential deregulatory impact of an agreement. Rather than act as a reliable guide to future outcomes, we thus show that these models serve the pro-liberalisation agenda of the European Commission and other advocates of the TTIP.     

Comment on ‘Cyclical and secular influences on the size distribution of personal income in the UK: some econometric tests’ by G. Weil

The issue of the relationship between domestic and eurocurrency interest rates is reexamined using the Granger causality test. It is concluded that while earlier results suggesting causality runs from the eurocurrency market to the domestic money market remains valid for the US dollar market, this result cannot be generalized to behaviour in the money markets denominated in sterling deutschemarks.     

Convergent cultural evolution and multilevel selection: Reply to comments on Janet Landa’s ‘The bioeconomics of homogenous middleman groups as adaptive units: Theory and empirical evidence viewed from a group selection framework’

The comments on Janet Landa’s (J Bioecon 10(3):259–278, 2008) target article provide a fascinating snapshot of how multilevel selection theory is perceived across several disciplines. When we focus on the zone of agreement among the commentators, Landa’s article provides an important example of convergent cultural evolution. When we focus on the zone of disagreement, we find a snapshot of the current status of the group selection controversy that goes beyond narrow scientific issues and requires a ‘truth and reconciliation’ process to resolve, as discussed in my series of blogs titled “Truth and Reconciliation for Group Selection” (Wilson , 2009) and briefly summarized here.