Farm Work, Home Work and International Productivity Differences

Agriculture's share of economic activity is known to vary inversely with a country's level of development. This paper examines whether extensions of the neoclassical growth model can account for some important sectoral patterns observed in a current cross-section of countries and in the time series data for currently rich countries. We find that a straightforward agricultural extension of the neoclassical growth model restricted to match U.S. observations fails to account for important aspects of the cross-country data. We then introduce a version of the growth model with home production, and we show that this model performs much better.agriculture, home work, productivity differences, two-sector model

Taxation and Market Work: Is Scandinavia an Outlier?

This paper argues that it is essential to explicitly consider how the government spends tax revenues when assessing the effects of tax rates on aggregate hours of market work. Different forms of government spending imply different elasticities of hours of work with regard to tax rates. I illustrate the empirical importance of this point by addressing the issue of hours worked and tax rates in three sets of economies: the US, Continental Europe and Scandinavia. While tax rates are highest in Scandinavia, hours worked in Scandinavia are significantly higher than they are in Continental Europe. I argue that differences in the form of government spending can potentially account for this pattern.

Computing by everyone for everyone

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.The viewpoint draws upon a wide variety of experiences and observations in order to reassess the status of information ethics action. Some empirical examples are used to demonstrate the need to refocus action in the information ethics field. The traditional view of focusing ethical action on professionals is challenged and a new action paradigm is proposed

Micro and Macro Elasticities in a Life Cycle Model With Taxes

We build a life cycle model of labor supply that incorporates changes along both the intensive and extensive margin and use it to assess the consequences of changes in tax and transfer policies on equilibrium hours of work. We find that changes in taxes have large aggregate effects on hours of work. Moreover, we find that there is no inconsistency between this result and the empirical finding of small labor elasticities for prime age workers. In our model, micro and macro elasticities are effectively unrelated. Our model is also consistent with other cross-country patterns.

Education Finance Reform and Investment in Human Capital: Lessons from California

This paper examines the effect of different education financing systems on the level and distribution of resources devoted to public education. We focus on California, which in the 1970's moved from a system of mixed local and state financing to one of effectively pure state finance and subsequently saw its funding of public education fall between ten and fifteen percent relative to the rest of the US. We show that a simple political economy model of public finance can account for the bulk of this drop. We find that while the distribution of spending became more equal, this was mainly at the cost of a large reduction in spending in the wealthier communities with little increase for the poorer districts. Our model implies that there is no simple trade-off between equity and resources; we show that if California had moved to the opposite extreme and abolished state aid altogether, funding for public education would also have dropped by almost ten percent.

Sorting and Long-Run Inequality

Many social commentators have raised concerns over the possibility that increased sorting in a society can lead to greater inequality. To investigate this we construct a dynamic model of intergenerational education acquisition, fertility, and marital sorting and parameterize the steady state to match several basic empirical findings. Contrary to Kremer's (1997) finding of a basically insignificant effect of marital sorting on inequality, we find that increased marital sorting will significantly increase income inequality. Three factors are central to our findings: a negative correlation between fertility and education, a decreasing marginal effect of parental education on children's years of education, and wages that are sensitive to the relative supply of skilled workers.

Income Distribution, Communities and the Quality of Public Education: A Policy Analysis

This paper analyzes within the context of a multicommunity model the effects of several policies that affect the financing of public education. The key features of the model are: (I) individuals differ with respect to income, (ii) individuals choose in which community to reside, (iii) communities are characterized by a proportional tax on income and a quality of public education, and (iv) a community's tax rate is chosen by majority vote. We examine three types of policies: subsidies for residency of specific income groups in particular communities, ceilings or floors on community level educational spending, and income redistribution. In each case we examine the consequences of these policies for both welfare and the quality of education across communities. We identify several policies which make all individuals better off and increase the quality of education in all communities.

Optical wireless communication based indoor positioning algorithms: performance optimisation and mathematical modelling

In this paper, the performance of the optimal beam radius indoor positioning (OBRIP) and two-receiver indoor positioning (TRIP) algorithms are analysed by varying system parameters in the presence of an indoor optical wireless channel modelled in line of sight configuration. From all the conducted simulations, the minimum average error value obtained for TRIP is 0.61 m against 0.81 m obtained for OBRIP for room dimensions of 10 m × 10 m × 3 m. In addition, for each simulated condition, TRIP, which uses two receivers, outperforms OBRIP and reduces position estimation error up to 30%. To get a better understanding of error in position estimation for different combinations of beam radius and separation between light emitting diodes, the 90th percentile error is determined using a cumulative distribution frequency (CDF) plot, which gives an error value of 0.94 m for TRIP as compared to 1.20 m obtained for OBRIP. Both algorithms also prove to be robust towards change in receiver tilting angle, thus providing flexibility in the selection of the parameters to adapt to any indoor environment. In addition, in this paper, a mathematical model based on the concept of raw moments is used to confirm the findings of the simulation results for the proposed algorithms. Using this mathematical model, closed-form expressions are derived for standard deviation of uniformly distributed points in an optical wireless communication based indoor positioning system with circular and rectangular beam shapes

Human Capital Accumulation and Income Distribution

The non-existence of credit markets implies that initial income is a determinant of who actually obtains an education. We consider the outcome of a process in which income is taxed to provide subsidies for education. and taxes are chosen by majority voting. We characterize the outcome as a function of both the level and the distribution of income in the economy. In particular we derive conditions under which middle income individuals ally themselves with upper income individuals at the expense of lower income individuals, and vice versa. The analysis determines the relationship between human capital accumulation and distribution of income.