Land and labor reallocation in pre-modern Japan : a case of a northeastern village in 1720-1870

In agricultural societies, adjusting land and labor according to changes of labor endowment that result from family life cycle events is premised on making full use of resources for each farming household and for the economy as a whole. This paper examines how and how well households in pre-modern Japan reallocated land and labor, using a population register covering 150 years from 1720–1870 for a village in the Tohoku region. We find that households reacted to equalize their production factors; land-scarce households tended to acquire or rent-in land and out-migrate their kin members, while land-abundant households tended to release or rent-out land, in-migrate kin members, or employ non-kin members. Estimates suggest that more than 80% of the surplus or deficit area of land was resolved if the household rented or "sold" land. We discuss a potential underlying mechanism; namely, that the village's collective responsibility for tax payment (murauke) motivated both individual households and the village as a whole to reallocate land and labor for the efficient use of resources.

Response threshold models, stochastic learning automata and ant colony optimization-based decentralized self-coordination algorithms for heterogeneous multi-tasks distribution in multi-robot systems

In recent decades, there has been an increasing interest in systems comprised of several autonomous mobile robots, and as a result, there has been a substantial amount of development in the eld of Articial Intelligence, especially in Robotics. There are several studies in the literature by some researchers from the scientic community that focus on the creation of intelligent machines and devices capable to imitate the functions and movements of living beings. Multi-Robot Systems (MRS) can often deal with tasks that are dicult, if not impossible, to be accomplished by a single robot. In the context of MRS, one of the main challenges is the need to control, coordinate and synchronize the operation of multiple robots to perform a specic task. This requires the development of new strategies and methods which allow us to obtain the desired system behavior in a formal and concise way. This PhD thesis aims to study the coordination of multi-robot systems, in particular, addresses the problem of the distribution of heterogeneous multi-tasks. The main interest in these systems is to understand how from simple rules inspired by the division of labor in social insects, a group of robots can perform tasks in an organized and coordinated way. We are mainly interested on truly distributed or decentralized solutions in which the robots themselves, autonomously and in an individual manner, select a particular task so that all tasks are optimally distributed. In general, to perform the multi-tasks distribution among a team of robots, they have to synchronize their actions and exchange information. Under this approach we can speak of multi-tasks selection instead of multi-tasks assignment, which means, that the agents or robots select the tasks instead of being assigned a task by a central controller. The key element in these algorithms is the estimation ix of the stimuli and the adaptive update of the thresholds. This means that each robot performs this estimate locally depending on the load or the number of pending tasks to be performed. In addition, it is very interesting the evaluation of the results in function in each approach, comparing the results obtained by the introducing noise in the number of pending loads, with the purpose of simulate the robot's error in estimating the real number of pending tasks. The main contribution of this thesis can be found in the approach based on self-organization and division of labor in social insects. An experimental scenario for the coordination problem among multiple robots, the robustness of the approaches and the generation of dynamic tasks have been presented and discussed. The particular issues studied are: Threshold models: It presents the experiments conducted to test the response threshold model with the objective to analyze the system performance index, for the problem of the distribution of heterogeneous multitasks in multi-robot systems; also has been introduced additive noise in the number of pending loads and has been generated dynamic tasks over time. Learning automata methods: It describes the experiments to test the learning automata-based probabilistic algorithms. The approach was tested to evaluate the system performance index with additive noise and with dynamic tasks generation for the same problem of the distribution of heterogeneous multi-tasks in multi-robot systems. Ant colony optimization: The goal of the experiments presented is to test the ant colony optimization-based deterministic algorithms, to achieve the distribution of heterogeneous multi-tasks in multi-robot systems. In the experiments performed, the system performance index is evaluated by introducing additive noise and dynamic tasks generation over time.

Making the Most of EU Labour Mobility. Report of a CEPS Task Force in Cooperation with the Bertelsmann Foundation. CEPS Task Force Report, 7 October 2014

This Task Force report combines the most recent data from Eurostat with national sources to highlight the most significant labour mobility trends within the EU. Overall, the recent recession has not induced previously immobile workers to become more mobile, at least not in the larger member states. Mobility flows have moved away from crisis countries in response to the economic downturn but the desired increase in south-north mobility has not been observed so far. This leads the authors to conclude that successfully fostering mobility within EU15 countries requires tremendous effort. It is important that workers who are willing and able to move are not discouraged from doing so by unnecessary barriers to mobility. Improving the workings of the EURES system and its online job-matching platform; better cooperation of national employment agencies; streamlining the recognition of qualifications; and supporting language training within the EU are important contributions to labour mobility. The authors conclude that the EU is right to defend the free movement of workers. National governments should keep in mind that their ability to tap into an attractive foreign labour supply also hinges upon the perception of how mobile workers are treated in destination countries. If the political imperative requires regulations to be changed, such as the one guiding the coordination of social security, it is essential that no new mobility barriers are put in place.

Europe on the Road to the Third Stage of EMU: Recent Evidence. CES Germany & Europe Working Papers, No. 07.2, 1996

The paper deals with Europe's effort to proceed to the thud stage of EMU and establish a common currency. It is argued that the success of the common currency experiment will greatly depend on the fulfillment of the Optimum Currency Area (OCA) criteria, on the adoption of the proper adjustment policies as well as on the political desirability of the project. The paper is organized as follows: Section 1 deals briefly with the index of criteria that define an OCA. Section 2 examines the extent to which Europe experiences common demand disturbances, while sections 3 and 4 focus on evidence about the mobility of factors of production across Europe, namely labor and capital. Section 5 examines the possibility of an increase in trade volume across the EU under fixed exchange rates or a common currency regime. Section 6 sheds light on the possibility of the EURO (the ex-ECU} to become a vehicle currency in the international financial system, and Section 7 is concerned with the benefits and costs of the establishment of a European Central Bank (ECB), paying special attention to seigniorage revenues. Section 8 deals with the necessity of establishing an EU federal mechanism facilitating adjustment. Section 9 sketches out a proper role for a hegemonic power in a common currency regime. Finally, section 10 examines EMU prospects during the transitional period. The paper closes with some concluding remarks, where the role of politics and coordination of economic policies are particularly emphasized as of cardinal importance on the road to the third stage of EMU.

Labor legislation of Ecuador /

"This translation of the labor laws of Ecuador was made under the direction of Ethel Y. Larson, of the Bureau of Labor Statistics."

Labor legislation of Paraguay /

"This translation of the labor laws of Paraguay was made under the direction of Ethel Y. Larson, of the Bureau of Labor Statistics."

Child labor and inadequate family income; preliminary report on a study of the work and welfare of children of agricultural laborers in Hidalgo County, Texas.

Cover title.

Labor legislation of Venezuela /

"This translation of the labor laws of Venezuela was made under the direction of Ethel Y. Larson, of the Bureau of Labor Statistics."

The impact of technology on labor in four industries : textiles/paper and paperboard/steel/motor vehicles.

"May 1985."

Occupational employment projections for labor market areas : an analysis of alternative approaches.

Item 746-H

Employment in perspective : a cyclical analysis of gross flows in the labor force.

Mode of access: Internet.

History of the labor movement in the United States,

Mode of access: Internet.

The labor market ... reviewed by the Bureau of Statistics & Information.

Mode of access: Internet.

Labor-management cooperation : 1989 State-of-the-Art Symposium.

"BLMR 124."

Reports of the Department of Commerce and Labor.

Includes the Report of the Secretary of Commerce and Labor and reports of bureaus.