the low pay commission and the national minimum wage great britain has had statutory regulation of minimum pay for most of this century but never previously had a national minimum wage nmw this paper outlines the history of minimum wage regulation culminating in 1997 with the establishment of the low pay commission lpc the three key debates within the lpc are analysed namely the definition of the wage what to do about youngsters and the level to set the nmw the impact of the nmw on the pay distribution employment family incomes and exchequer finances is set out the paper concludes that the lpc is a fine example of successful social partnership

the macroeconomic consequences of raising the minimum wage capital accumulation employment and the wage distribution we study the quantitative impact of a rise in the minimum wage on macroeconomic outcomes such as employment the stock of capital and the distribution of wages our modeling framework is the large firm search and matching model our comparative statics are in line with previous empirical findings a moderate increase in the minimum wage barely affects employment while it compresses the wage distribution and generates positive spillovers on higher wages the model also predicts an increase in the stock of capital next we perform the policy experiment of introducing a 10 dollar minimum wage our results suggest large positive effects on capital 4 0 and output 1 8 with a decrease in employment by 2 8 the introduction of a 9 dollar minimum wage would instead produce similar effects on capital accumulation without harming employment

the employment effects of the national minimum wage this paper estimates the employment effects of the introduction of the uk national minimum wage in april 1999 and subsequent upratings in 2000 and 2001 it uses a difference in differences estimator based on position in the wage distribution for the upratings an adjusted estimator is also introduced to allow for the possible differential response to the change in the macro employment trend no significant adverse employment effects are found for any of these events for any of the estimators for any demographic group

optimal alliance strategies among retailers under energy deviation settlement mechanism in china s forward electricity market an energy deviation settlement eds mechanism has been proposed to settle the deviation between consumption and energy contracts in china s forward electricity market due to high eds costs of electricity retailers a deviation mutual insurance dmi mechanism is put forward representing an option for electricity retailers to reduce the deviation through contract transfer given this background an optimal alliance strategy is proposed to maximize the utility of different types of individual electricity retailers the alliance income model considers the eds cost reduction and the cooperation cost analyzed based on transaction cost theory tct an improved income allocation method which considers distribution indexes selected by game theory and resource dependence theory rdt is proposed to ensure the comprehensive and reasonable allocation of alliance income considering the expected income and financial risk an evaluation model using conditional value at risk cvar as the financial risk assessment indicator is presented to measure the stability of alliances simulations based on data from a provincial electricity market in china illustrate that the eds costs of retailers can be reduced by selecting appropriate partners for alliance in addition the proposed alliance income allocation method is more reasonable and more targeted than the cooperative game based methods

transaction costs collective action and survival of heterogeneous co management institutions case study of forest management organisations in west bengal india abstract cost effective natural resource management is important for equity and efficiency yet transaction costs of cooperation may pose a challenge to heterogeneous co management institutions we conducted a survey in seven forest protection committees of west bengal india to examine this hypothesis empirically we find that 1 among several factors caste heterogeneity distance to forest political heterogeneity land inequality and trust systematically influence transaction costs and collective action and 2 robust institutions bear less costs of cooperation the implication is that transaction costs related to heterogeneity may exert significant influence on successes or failures of co management

portfolio analysis with factors and scenarios recently there has been a growing interest in the scenario model of covariance as an alternative to the one factor or many factor models we show how the covariance matrix resulting from the scenario model can easily be made diagonal by adding new variables linearly related to the amounts invested note the meanings of these new variables note how portfolio variance divides itself into within scenario and between scenario variances and extend the results to models in which scenarios and factors both appear where factor distributions and effects may or may not be scenario sensitive

a global survey and review of the determinants of transaction costs of forestry carbon projects reducing carbon emissions in the forestry sector by means of market based schemes is considered a cost effective measure for tackling climate change impacts however the transaction costs tcs involved are typically unknown or unquantified and therefore often neglected in this study three types of tcs search design and negotiation costs were measured in person days and monetary terms based on a global survey of forestry carbon projects implemented across latin america asia and africa cost estimates vary between zero and 1 201 tco2 for person days and from zero to us 1 738 tco2 for monetary costs key drivers of tcs are identified based on the characteristics of the project in general the transaction the transactors involved and institutional design the latter type of characteristic is shown to have a particularly large impact on tcs

the other margin do minimum wages cause working hours adjustments for low wage workers this paper estimates the impact of the introduction of the uk minimum wage on the working hours of low wage employees using difference in differences estimators the estimates using the employer based new earnings surveys indicate that the introduction of the minimum wage reduced the basic hours of low wage workers by between one and two hours per week the effects on total paid hours are similar indicating negligible effects on paid overtime and lagged effects dominate the smaller and less significant initial effects within this estimates using the employee based labour force surveys are typically less significant

the effects of minimum wages on wage dispersion and employment evidence from the u k wages councils using data on wages council coverage from the united kingdom new earnings survey the authors examine the impact of mandated minimum wages on wage dispersion and employment in the united kingdom in the 1980s they find evidence that a dramatic decline in the toughness of the regulation imposed by the wages councils through the 1980s a decline that is in the level of the minimum wage relative to the average wage significantly contributed to widening wage dispersion over those years there is however no evidence of an increase in employment resulting from the weakening bite of the wages council minimum pay rates instead consistent with the conclusions of several recent u s studies the findings suggest that the minimum wage had either no effect or a positive effect on employment

long term impact of minimum wages on workers careers evidence from two decades of longitudinal linked employer employee data i acknowledge the support of the spanish ministry of the economy severo ochoa programme for centres of excellence in r d sev20150563 the aei spain and feder ue grant eco2016 76734 p

transaction costs of carbon offset projects a comparative study abstract the land use change and forestry sector can be a cost effective contributor to climate mitigation in at least three ways providing carbon offsets through carbon sequestration in biomass and soils reducing emissions of methane and other greenhouse gases and producing biofuels that replace fossil fuels the presence of carbon markets should help encourage these activities however most carbon trades to date have occurred in the energy sector a major obstacle to carbon trades from land use systems is the presence of high transaction costs of converting a carbon offset into a tradable commodity so the prevailing market carbon prices may not provide enough incentive for adoption this paper presents a model of the exchange of carbon offsets between a project developer and a group of landholders the model is solved to derive project feasibility frontiers that show the minimum number of contracts necessary to make a project feasible at any given carbon price the model is applied to two case studies smallholder agroforestry in indonesia and partial reforestation of family farms in australia under two types of contract purchase of carbon flows and rental of carbon stocks the paper concludes by identifying possible strategies to reduce transaction costs while maintaining project integrity

the economic impacts of minimum wage laws a new look at an old question this article uses a radically different methodology to address the question of the impact of minimum wage laws on employment and earnings the methodology uses the adult wage structure which exists prior to a change in the federal minimum wage to identify the members of the subminimum wage population this allows the parameterization of the disemployment effects of the minimum wage amendment on the subminimum population and the spillover employment effects on the above minimum population the members of the subminimum population are found to experience considerably reduced employment probabilities and annual hours worked conditional on employment some evidence of above minimum spillover effects is also found the paper evaluates the impact of the minimum on the earnings distribution and concludes that the burden of the minimum wage falls most severely on females this effect on adult females is surprisingly neutral with respect to race the greatest beneficiaries of the minimum among the adult populati

the minimum wage and the employment of youth evidence from the nlsy using panel data on individuals from the national longitudinal survey of youth we find that employed individuals who were affected by the increases in the federal minimum wage in 1979 and 1980 were about 3 percent less likely to be employed a year later even after accounting for the fact that workers employed at the minimum wage may differ from their peers in unobserved ways

why do transaction costs of agricultural policies vary policy related transaction costs tcs is an important issue when evaluating different policy options however tcs are often not taken into account in policy evaluations but may be as important for efficiency as the direct production costs different policies may result in different tcs and the main aim of this article is to explore possible reasons for these differences we compare the level of tcs for 12 different agricultural policy measures in norway and we analyze the causes of the differences along three different dimensions asset specificity frequency and point of policy application at the national level we find that all three dimensions are of importance when explaining the differences while variation in tcs incurred by farmers are mainly due to differences in point of policy application and asset specificity data show that direct price support has the lowest tcs while more direct payments for environmental amenities has the highest

optimal portfolio selection under institutional procedures for short selling abstract this study presents and formally justifies a simple ranking approach for optimal portfolio selection under institutional procedures for short selling it also provides economic insights of the explicit solution of the portfolio problem the analysis is applicable to different treatments of the short sale proceeds and any margin deposits in contrast to previous approaches it does not require assumptions that overstate short sale benefits for maintaining analytical tractability and it can easily identify and filter out securities that are undesirable for investing or for short selling thus this study can enhance the usefulness of portfolio modeling for assisting practical investment decisions

transaction costs and environmental policy design abstract this article synthesizes the growing empirical literature on transaction costs to identify pragmatic design recommendations for environmental and natural resource policies the new institutional economics literature recognizes that appropriate policy choice and design will be a function of the specific characteristics of the problem the physical and institutional determinants of both transaction costs and abatement costs should be considered in the policy design process due to potential interactions between them analysts also need to incorporate the extent to which the technologies institutional environment governance structures or policy designs can be changed some factors can only be adjusted to or designed around while others can be designed differently this framework highlights the importance of property rights since transaction costs will be incurred to obtain or retain property rights and since the rights assignment may affect both the magnitudes and distribution of costs another implication is that education and extension programs or use of behavioral economics concepts to affect choices can be cost effective in some circumstances policy design should take advantage of economies of scale and foster technical change appropriate sequencing of policy instruments may decrease transaction costs particularly if there is potential for technical change

market efficiency a theoretical distinction and so what with the aid of some simplifying assumptions the capital asset pricing model comes to dramatic conclusions about practical matters such as how to choose an investment portfolio and how to value financial assets as illustrated in this article when one particular clearly unrealistic capm assumption is replaced by a more real world version some of the dramatic practical conclusions of capm no longer follow this result has implications for financial practice research and pedagogy

the impact of the introduction of the u k minimum wage on the employment probabilities of low wage workers this paper uses longitudinal data from three contrasting data sets matched labor force surveys the british household panel survey and matched new earnings surveys to estimate the impact of the introduction of the u k minimum wage in april 1999 on the probability of subsequent employment among those whose wages would have needed to be raised to comply with the minimum a difference in differences estimator is used based on position in the wage distribution no significant adverse employment effects are found for any of the four demographic groups considered adult and youth men and women or in any of the three data sets used jel j38 j23

where the minimum wage bites hard introduction of minimum wages to a low wage sector between 1993 and april 1999 there was no minimum wage in the united kingdom except in agriculture in this paper we study the effects of the introduction of a national minimum wage nmw in april 1999 on one heavily affected sector the residential care homes industry this sector contains a large number of low paid workers and as such can be viewed as being very vulnerable to minimum wage legislation we look at the impact on both wages and employment our results suggest that the minimum wage raised the wages of a large number of care home workers causing a very big wage compression of the lower end of the wage distribution thereby strongly reducing wage inequality there is some evidence of employment and hours reductions after the minimum wage introduction though the estimated effects are not that sizable given how heavily the wage structure was affected

portfolio optimization with factors scenarios and realistic short positions this paper presents fast algorithms for calculating mean variance efficient frontiers when the investor can sell securities short as well as buy long and when a factor and or scenario model of covariance is assumed currently fast algorithms for factor scenario or mixed factor and scenario models exist but except for a special case of the results reported here apply only to portfolios of long positions factor and scenario models are used widely in applied portfolio analysis and short sales have been used increasingly as part of large institutional portfolios generally the critical line algorithm cla traces out mean variance efficient sets when the investor s choice is subject to any system of linear equality or inequality constraints versions of cla that take advantage of factor and or scenario models of covariance gain speed by greatly simplifying the equations for segments of the efficient set these same algorithms can be used unchanged for the long short portfolio selection problem provided a certain condition on the constraint set holds this condition usually holds in practice

factors that influence transaction costs in development offsets who bears what and why abstract environmental policy instruments generate transaction costs to public and private parties there is a growing literature reporting on the size of transaction costs produced by environmental policy instruments this paper extends that literature through an analysis of the factors that influence transaction costs in environmental policy and how this influence occurs the theory based factors that influence transaction costs are categorised as 1 transaction characteristics 2 transactor characteristics 3 nature of the institutional environment and 4 nature of the institutional arrangements we examined how these factors influenced transaction costs through the analysis of two australian based development offset schemes with different policy designs we found evidence of all four theory based categories of influence in the policy case studies the degree of influence and how each factor influenced transaction costs varies across the two policies and between parties policy design as a component of the institutional environment had a particularly large bearing on transaction costs of offset buyers and the policy administrator an important contribution to transaction cost theory assumes the institutional environment as given

job changes and hours changes understanding the path of labor supply adjustment we use british panel data to investigate single women s labor supply changes in response to three reforms that affected individuals work incentives we use these reforms to identify changes in labor supply there is evidence of small hours of work effects for two of such reforms a third reform in 1999 instead led to a significant increase in single mothers hours of work the mechanism by which the labor supply adjustments were made occurred largely through job changes rather than hours changes with the same employer this is little overall effect of the reforms on wages

a regional analysis of flows into and out of the uk national minimum wage this article utilizes the panel element of the uk labour force survey lfs to identify for individual regions total inflows and outflows and hazards for those individuals paid at or below the national minimum wage nmw in particular it examines the extent and direction of the correlation between low pay inflows and outflows and the economic cycle further it examines the impact of regional variations in the bite of the nmw on regional flows into and out of the nmw

trimability and fast optimization of long short portfolios optimization of long short portfolios through the use of fast algorithms takes advantage of models of covariance to simplify the equations that determine optimality fast algorithms exist for widely applied factor and scenario analysis for long only portfolios to allow their use in factor and scenario analysis for long short portfolios the concept of trimability is introduced the conclusion is that the same fast algorithms that were designed for long only portfolios can be used virtually unchanged for long short portfolio optimization provided the portfolio is trimable which usually holds in practice

transaction costs and the design of cropshare contracts modern cropshare contracts are explained using a model in which agents are risk neutral and contract rules are chosen to maximize expected joint wealth it is shown that the farmer either bears the entire cost of inputs or shares the costs with the landowner in the same proportion as the output the incentives of altering the cropshare percentage are examined and are used to derive implications about the portion of the crop that will be owned by the farmer the model is tested and supported using data from a 1986 survey offarmers and landowners in nebraska and south dakota

short selling and efficient sets the effect of short selling on the composition and location of the efficient set has been analyzed in a variety of ways however the situation typically facing investors where the initial margin requirement is less than 100 percent and the riskfree interest rate that is paid on the short proceeds is less than the rate paid on initial margin has not previously been considered the elton gruber padberg algorithm 1976 1978 subject to certain modifications is shown here to be capable of identifying the efflcient set under such conditions when harry markowitz 1952 developed the notion of efficient sets as a method of identifying an investor s optimal portfolio he did so in a setting where short selling was prohibited since then the effect of short selling on the composition and location of the efficient set has been considered in a variety of ways for example lintner 1965 suggested that short sales be treated from the perspective of a broker dealer where an amount of money equal to the short proceeds must be put up as initial margin with the short seller receiving riskfree interest on both the short proceeds and the margin alternatively black 1972 and merton 1972 assumed that the short seller did not have to put up any initial margin and that the short seller actually got the use of the short proceeds more recently dyl 1975 has assumed that the short seller must put up initial margin that is less than the short proceeds but receives no interest on either the margin or short proceeds this paper is concerned with the generation of efficient sets where short selling is allowed but with certain restrictions attached to it referred to hereafter as restricted short selling in particular initial margin is required but can be met by depositing interest bearing securities with the brokerage firm where the short seller s account is kept furthermore the model allows the short seller to earn interest on the short proceeds accordingly the model

multivariate dependence and portfolio optimization algorithms under illiquid market scenarios we propose a model for optimizing structured portfolios with liquidity adjusted value at risk lvar constraints whereby linear correlations between assets are replaced by the multivariate nonlinear dependence structure based on dynamic conditional correlation t copula modeling our portfolio optimization algorithm minimizes the lvar function under adverse market circumstances and multiple operational and financial constraints when we consider a diversified portfolio of international stock and commodity market indices under multiple realistic portfolio optimization scenarios the obtained results consistently show the superiority of our approach relative to other competing portfolio strategies including the minimum variance risk parity and equally weighted portfolio allocations

a reassessment of the new economics of the minimum wage literature with monthly data from the current population survey we estimate the employment effects of federal minimum wage increases using monthly current population survey cps data from 1979 through 1997 we find that the empirical differences in the new minimum wage literature based on cps data primarily can be traced to alternative methods of controlling for macroeconomic conditions we argue that the macroeconomic controls commonly included in models where no employment impact is found are inappropriate we consistently find a significant but modest negative relationship between minimum wage increases and teenage employment using alternative controls or allowing employer responses to the policy to occur with some delay

on the optimality of long short strategies we consider the optimality of portfolios not subject to short selling constraints and derive conditions that a universe of securities must satisfy for an optimal active portfolio to be dollar neutr

taking stock a comparative analysis of payments for environmental services programs in developed and developing countries abstract payments for environmental services pes are an innovative approach to conservation that has been applied increasingly often in both developed and developing countries to date however few efforts have been made to systematically compare pes experiences drawing on the wealth of case studies in this special issue we synthesize the information presented according to case characteristics with respect to design costs environmental effectiveness and other outcomes pes programs often differ substantially one from the other some of the differences reflect adaptation of the basic concept to very different ecological socioeconomic or institutional conditions others reflect poor design due either to mistakes or to the need to accommodate political pressures we find significant differences between user financed pes programs in which funding comes from the users of the es being provided and government financed programs in which funding comes from a third party the user financed programs in our sample were better targeted more closely tailored to local conditions and needs had better monitoring and a greater willingness to enforce conditionality and had far fewer confounding side objectives than government financed programs we finish by outlining some perspectives on how both user and government financed pes programs could be made more effective and cost efficient

influences of transaction costs in environmental policy abstract there is a growing literature reporting the extent of transaction costs for environmental policies however understanding why transaction costs occur and why they are small or large is also important for efficient policy selection and evaluation following an analysis of the organisational economics literature and reports of the extent of transaction costs for a number of environmental policies three key influences to transaction costs in environmental policies are identified these are the following 1 the characteristics of the transaction for the environmental good 2 the nature of the transactors and 3 the current institutional environment and arrangements these affect transaction costs to the government and all other parties influenced by a policy transaction costs occur due to actions of information collection and policy design policy enactment and establishment implementation and contracting administration and monitoring and enforcement an interrogation of transaction cost influences reveals that 1 the influence varies between parties and is affected by the actions and interactions of and between all parties to a policy 2 how transaction costs are experienced varies across time and 3 who experiences transaction costs depends on the policy itself future policy selection and refinement will benefit from empirical analysis of the causes of transaction costs

the employment effect in retail trade of california s 1988 minimum wage increase in this article we study the labor market effect of california s 1988 minimum wage increase in the retail trade industry two different approaches to evaluating the minimum wage effects suggest that the textbook economic analysis of minimum wages pertains employment growth in california s low wage retail trade sector appears to have been tempered by the minimum wage increase

simulating security markets in dynamic and equilibrium modes an asynchronous discrete time model run in dynamic mode can model the effects on market prices of changes in strategies leverage and regulations or the effects of different return estimation procedures and different trading rules run in equilibrium mode it can be used to arrive at equilibrium expected returns

the effects of minimum wages on employment theory and evidence from britain recent work on the economic effects of minimum wages has stressed that the standard economic model where increases in minimum wages depress employment is not supported by empirical work in some labor markets we present a general theoretical model whereby employers have some degree of monopsony power which allows minimum wages to have the conventional negative impact on employment but which also allows for a neutral or positive impact studying the industry based british wages councils between 1975 and 1992 we find that minimum wages significantly compress the distribution of earnings but do not have a negative impact on employment

evaluating the impact of the french tax credit on the employment rate of women abstract this paper investigates the employment impact of a new tax credit programme that was put in place in france in 2001 according to the theoretical labour supply model tax credits will have a positive effect on individual labour market participation as they increase the rewards from work however tax credits may discourage married women s participation mainly due to income effects we analyse the introduction of the french measure by adopting a non experimental evaluation method various treatment and control groups are defined the first specification adopted relies on the policy eligibility rules for the construction of the control and treatment groups the others hinge respectively on marital status for women in couple households and on the presence of children for single women we find evidence of a negative employment effect for married women with a reduction of about three percentage points in the employment rate after the introduction of the policy in particular it seems to be the conditioning on total household resources that discourages married women s labour market participation on the contrary the employment impact of the measure is positive for cohabiting women and twice as large the policy effect is very small and statistically not significant for single women the net impact of the introduction of the tax credit on the total employment of women is very marginal amounting to the creation of about two thousand new jobs