Groups, collective decisions and markets

We consider a general equilibrium model where multi-member households make efficient collective consumption decisions and operate in a competitive market environment. Individuals have the option to leave the household and make it on their own or join another household. We study the effect of these outside options on household formation, household stability and equilibrium existence.     

Household Decisions and Equilibrium Efficiency

A general equilibrium model is introduced where a household may consist of several members, each with individual preferences and/or resources. When households obey collective rationality, certain intrahousehold externalities can be fully internalized by the respective households so that competitive exchange among households is efficient. As a rule, however, such intrahousehold externalities are not fully internalized by individual household members acting in their personal interest so that competitive exchange among such individuals is only efficient in exceptional cases.     

Dynamic asset allocation and consumption under inflation inequality: The impacts of inflation experiences and expectations

Differences in spending patterns and in price increases across goods and services lead to the unequal inflation experiences of households (called inflation inequality). These differences then cause disagreements in inflation expectations and eventually have a significant effect on households’ asset allocation and consumption decisions. The asset allocation model in this paper explains how inflation experiences affect household investment and consumption through corresponding inflation expectations, which are characterized by long-term expected inflation, the impact coefficient of the expected inflation and the correlation between expected inflation and the risky return. Using China's economic data, the empirical results show that significant differences in inflation expectation arise from income gap, regional inequality, different inflation measures and economic sector spending differences. Using the estimated coefficients, the calibration results have policy implications that households need more financing channels to resist inflation, especially in rural areas and in the raw material sector.     

The electoral migration cycle

This paper proposes a new test of Tiebout sorting that relies on the exogenous time structure of recurrent local elections. The test is based on the idea that competitive elections represent periodic perturbations to the Tiebout equilibrium of local public good provision and allocation of households to communities, so that their schedule should affect the timing of households' sorting decisions. On the other hand, internal migration flows that have nothing to do with the demand for public goods over which localities vote recurrently ought to be orthogonal to the timing of elections in a reduced-form migration equation. I exploit the staggered schedule of mayoral elections in Italy to analyze migration, elections, and public budget data across several thousands of municipalities, and find evidence of a systematic influence of the electoral calendar on the timing of sorting decisions.     

Owning capital or being shareholders: An equivalence result with incomplete markets

Many recent papers in macroeconomics have studied the implications of models with household heterogeneity and incomplete financial markets under the assumption that households own the stock of physical capital and undertake the intertemporal investment decisions. In these models, production exhibits constant returns to scale, households maximize expected discounted utility, and firms rent capital and labor from households to maximize period by period profits. This paper considers the case in which infinitely lived firms, rather than households, make the intertemporal investment decisions. Under this assumption, it shows that there exists an objective function for firms that results in the same equilibrium allocation as in the standard setting with one period lived firms. The objective requires that firms maximize their asset value, which is defined as the discounted value of future cash flows using present value processes that do not allow for arbitrage opportunities.     

Wives' time allocation and intrahousehold power: evidence from the Philippines

Utilizing a rich survey data collected in the Southern part of the Philippines, this paper examines the time allocation of wives within the collective household framework by investigating not only the role of socioeconomic factors but also the influence of various intrahousehold power indicators. Analysis of autonomy and finality of intrahousehold decisions discloses that decisions are not unilaterally decided by a single household member, a result which confirms the prediction of collective household framework. Adopting a simple test procedure, this paper also examines which of the competing household models, collective or unitary, best describes these Philippine time-use data. Testing results lend support to the validity of the collective household framework.     

Collective decisions with interdependent valuations

Many collective decision problems have in common that individuals’ desired outcomes are correlated but not identical. This paper studies collective decisions with private information about desired policies. Each agent holds private information which mainly concerns his own bliss point, but private information also affects all other agents. We concentrate on two specific mechanism, the median and mean mechanisms establish the existence of symmetric Bayesian Nash equilibria of the corresponding games and compare the performance of the mechanisms for different degrees of interdependencies. Applications of our framework include the provision of public goods and the design of decision processes in international organizations.     

Self-Selection Consistent Functions

This paper studies collective choice rules whose outcomes consist of a collection of simultaneous decisions, each one of which is the only concern of some group of individuals in society. The need for such rules arises in different contexts, including the establishment of jurisdictions, the location of multiple public facilities, or the election of representative committees. We define a notion of allocation consistency requiring that each partial aspect of the global decision taken by society as a whole should be ratified by the group of agents who are directly concerned with this particular aspect. We investigate the possibility of designing efficient allocation consistent rules. We also explore whether such rules may in addition respect the Condorcet criterion. Journal of Economic Literature Classification Numbers: D7, D71.     

基于效率的环境产权分配

由于双边道德风险的存在,无论将环境产权分配给排污者还是受害者,一般来说,都难以使双方均作出有效率的预防行动配置决策。因此,在排污者与受害者之间变更环境产权归属,一般并不会导致帕累托最优竞争均衡。本文通过对两种非效率均衡的比较,从确认最低成本预防者角度分析了环境产权的分配。这种规则下的环境产权分配将导致相对更有效率的结果。     

Remittances and Household Expenditures on Education in Ghana's Northern Region: Why Gender Matters

Studies of the impact of migrant remittances on receiving households assume that these households act as a unit in receiving remittances and making decisions about their use. Thus, many of these studies use the gender of the household head as a key control variable. This study questions this assumption, using original qualitative and quantitative data on rural–urban migration of women in Ghana to show that gendered social norms of household provisioning influence the intrahousehold flow of remittances. Regression results indicate that migrant women are more likely to send remittances to other women, creating female-centered networks of remittance flows even within male-headed households. The implications of this for intrahousehold resource allocation are explored through an analysis of the impact of the gender of the remitter and recipient on education expenditure. The results show that regardless of the gender of the household head, households in which women are the primary recipient of remittances spend more than twice as much on education as households in which men are the primary recipient.     

二元性问题的讨论:我们忽略了什么——一个基于资源占有非均衡的分析

除了传统意义的二元结构,在垄断行业与市场竞争行业、计划经济改制的国有企业与完全市场竞争企业及由教育资源分享不公引起的劳动力异质问题上,均有以隐性形式存在的二元结构问题.二元性外延的拓展根源于经济活动中公有资源占有的不公平,并且一经占有,个体理性的本位效率偏好与集体行动的公平目标必然出现一定的背离.二元性的存在不仅影响和谐社会的构建,而且使效率原则出现一定程度的扭曲.     

Remittances and healthcare expenditure: Human capital investment or responses to shocks? Evidence from Peru

This paper estimates the effect of international remittances on healthcare expenditures, taking into account both the interdependence with other consumption goods and the effects of health shocks. More precisely, we assess whether the budget allocation decisions of remittance‐receiving households reveal different preferences to invest in health capital, even when the simultaneous effect that health shocks may have on the demand of remittances and on other types of nondurable expenditures is accounted for. Using data from the “Peruvian National Survey of Households,” we find that remittances have a positive impact on healthcare budget shares, net of the remittance‐related income effect and independently of the occurrance of a health shock. They also have a positive impact on housing and a negative one on other expenditure items, that is, clothing, transport, and education. Hence, our results indicate a “pure” tendency of remittance‐receiving households to devote larger shares of their budget to health capital investment, rather than to other types of consumption goods.     

Taxation and household portfolio composition: US evidence from the 1980s and 1990s

This paper explores the relationship between household marginal income tax rates, the set of financial assets that households own, and the portfolio shares accounted for by each of these assets. It analyzes data from the 1983, 1989, 1992, 1995, and 1998 Surveys of Consumer Finances and develops a new algorithm for imputing federal marginal tax rates to households in these surveys. The empirical findings suggest that marginal tax rates have important effects on asset allocation decisions. The probability that a household owns tax-advantaged assets, such as tax-exempt bonds or assets held in tax-deferred accounts, is positively related to its tax rate on ordinary income. In addition, the portfolio share invested in corporate stock, which is taxed less heavily than interest bearing assets, is increasing in the household’s ordinary income tax rate. Holdings of heavily taxed assets, such as interest-bearing accounts, decline as a share of wealth as a household’s marginal tax rate increases.     

基于承受能力的住房配置公平性实证

住房是人类维持生存的基础资源,对其公平配置是现代社会公平的基础,也是构建和谐社会的重要环节。在构建住房承受能力测度方法-修正的住房承受能力指数的基础上,以武汉市调查样本数据为例,运用Logistic回归模型分析了住房配置公平性的影响因素,发现住房承受能力水平仍然是影响住房配置公平性的重要标志,住房承受能力越高,对住房制度改革满意程度越高,认为公平的家庭也越多;教育程度在大学及以上,主要家庭成员在行政机关、事业单位、国企或集体等单位工作,对住房制度改革的满意程度较高;现有住房面积大、个人规模适中的家庭对住房制度改革也有较高的满意度。同时还发现在收入较高的家庭中,户主性别对住房配置公平性的影响不显著,户主年龄对住房配置公平性的影响也不显著。提出从积极增进社会资本、改善住房供给结构、完善住房保障制度等方面促进住房配置公平。     

The affectionate society: does competition for partners promote friendliness?

We study household formation in a model where collective consumption decisions of a household depend on the strategic choices of its members. The surplus of households is determined by individual choices of levels of friendliness to each other. A strategic conflict arises from a coupling condition that ceteris paribus, a person’s friendlier attitude reduces the individual’s influence in the household’s collective decision on how to divide the ensuing surplus. While partners in an isolated household choose the minimum level of friendliness, competition for partners tends to promote friendliness. We find that affluence does not buy affection, but can lead to withholding of affection by an affluent partner who can afford to do so. In general, the equilibrium degree of friendliness proves sensitive to the socio-economic composition of the population. We would like to thank Clive Bell, Edward Glaeser, Roger Lagunoff, Eva Terberger and seminar audiences in Berlin, Birmingham, Blacksburg, Exeter, Heidelberg, Manchester and at IHS in Vienna for helpful comments. We greatly appreciate the thoughtful comments of a referee.     

Recursive equilibrium in endogenous growth models with incomplete markets

This paper analyzes the existence of recursive equilibria in a class of convex growth models with incomplete markets. Households have identical CRRA-preferences, production displays constant returns to scale with respect to physical and human capital, and all markets are competitive. There are aggregate productivity shocks that affect aggregate returns to physical and human capital investment (stock returns and wages), and there are idiosyncratic shocks to human capital (idiosyncratic depreciation shocks) that only affect individual human capital returns. Aggregate and idiosyncratic shocks follow a joint Markov process. Conditional on the aggregate state, idiosyncratic shocks are independently distributed over time and identically distributed across households. Finally, households have the opportunity to trade assets in zero net supply with payoffs that depend on the aggregate shock, but markets are incomplete in the sense that there are no assets with payoffs depending on idiosyncratic shocks. It is shown that there exists a recursive equilibrium for which equilibrium prices (returns) only depend on the exogenous aggregate shock variable (the wealth distribution is not a relevant state variable). Moreover, the allocation associated with this recursive equilibrium is identical to the equilibrium allocation of an economy in which households live in autarky and face both aggregate and idiosyncratic risk.I would like to thank for helpful comments Peter Howitt, Bob Lucas, Michael Magill, Tomo Nakajima, Herakles Polemarchakis, Martine Quinzii, Kevin Reffett, an anonymous referee, and seminar participants at various universities and conferences.     

After the great recession : financial sophistication and housing leverage

US households face various choices in saving for retirement, with one of the most common decisions related to maintaining or paying off a mortgage. Using the 2010 and 2013 Survey of Consumer Finances, this study investigates the relationship between financial sophistication and mortgage decisions among middle-age households. A Heckman two-stage selection model is employed to investigate two separate decisions: mortgage holding and loan-to-value (LTV) ratios among mortgage holders. Results indicate that financial sophistication is positively associated with carrying a mortgage and higher LTV ratios. These results imply that financially sophisticated households may be using leverage to increase asset returns.     

The Impact of Non-Labor Income Given Job Heterogeneity on Household Time Allocation: The Evidence from China

This paper proposes a theoretical framework based on new household economic theories. A dataset from the 2006 China Health and Nutrition Survey (CHNS) is used. Given heterogeneity in major family members’ jobs, the effect of non-labor income on household time allocation is discussed under two scenarios: jobs with flexible work hours and jobs with fixed work hours in the market. Based on the nature of the employer the major family member works for, employers can be categorized into four categories: government-owned, family contract, privately-owned, and foreign-funded. Each of the four categories is used for dissecting the data into different sets for analysis by category. The results imply that job heterogeneity is significantly correlated to household time allocation. An increase in non-labor income results in a decrease in the time allocated to housework for all households. However, leisure time is allocated differently among different households due to job heterogeneity. An increase in non-labor income leads to less leisure time for households working for government-owned or foreign-funded enterprises, and more leisure time for households working for family contract or privately-owned enterprises.     

Evaluating the competitiveness of enterprise’s technology based on LDA topic model

ABSTRACT

With the advent of the knowledge economy, technology has become the foundation of advancement for many enterprises. To maintain a lasting competitive edge, enterprises must accurately determine the competitiveness of particular technologies. However, emerging innovations are becoming more and more complex, and interdisciplinary trends complicate matters even further. In the competitiveness evaluation based on patent, traditional patent classifications are both loose and time-sensitive. In this paper, we constructed the evaluation model of enterprise’s technology competitiveness based on the technological topics generated by a latent Dirichlet allocation (LDA) topic model. LDA topic model is able to classify technologies into narrower categories and can, therefore, provide rich information on the competitive landscape of a field. Two indexes are used to determine the technological competitiveness of an enterprise in the model – a specialisation index and a diversification index. At the same time, we explore the distribution of enterprises with different technological topics through the relative share, the technology’s appeal, and the competitive advantage that technology might give an enterprise. The empirical study on intelligent connected vehicles validates the model, and the results provide theoretical support for developing R&D strategies and/or making investment decisions.     

Comparable Axiomatizations of Two Allocation Rules for Cooperative Games with Transferable Utility and Their Subclass of Data Games

The axiom of balanced collective contributions is introduced as a collective variant of the axiom of balanced contributions proposed by Myerson. It requires the identical average impact of the withdrawal of any agent from a game on the remaining population. It turns out that the axiom of balanced collective contributions and the classical axiom of efficiency characterize the equal allocation of nonseparable costs, an allocation rule that is extensively used in cost allocation problems and in accounting. In particular, the equal allocation of nonseparable costs coincides with the nucleolus on the class of data games within the European REACH legislation. While our result does not hold on data games, extra axioms enable provision of comparable characterizations of the equal allocation of nonseparable costs and the Shapley value on this class of games.