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排序方式： 共有98条查询结果，搜索用时 15 毫秒
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Hiroyuki IMAI 《The Developing economies》2010,48(3):319-344
Hong Kong's US dollar peg, adopted in 1983, has failed to deliver price stability. Hong Kong experienced high inflation before the Asian financial crisis and prolonged deflation after it. The annual rate of inflation (GDP-deflator based) was 7.4% in the first period (1985–97) and −2.0% in the second (1998–2007). There was no clear trend for the inflation rate to converge to the US level. The nominal anchor via a fixed exchange rate in Hong Kong had an upward and downward drift in the order of 4% from the US inflation rate, casting doubt on the anchor's efficacy. Despite Hong Kong's high output growth relative to that of the United States, the Balassa-Samuelson effect was not the main factor behind the pre-Asian crisis inflation. Price shocks in service exports played a major role in Hong Kong's general prices through the two periods. 相似文献
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Hiroyuki Takeshima Hyacinth O. Edeh Akeem O. Lawal Moshudi A. Isiaka 《The Developing economies》2015,53(3):188-217
Agricultural mechanization has been integral to agricultural transformation during periods of development. Mechanization‐service provisions can be constrained by economies of scale, seasonality, limited mobility, or heterogeneous inputs quality. However, information has been scarce regarding how the private sector has overcome these constraints especially in countries like Nigeria that are at low agricultural development stages. We present the results of a small survey of tractor owner‐operators conducted in Nigeria. We find that existing private‐sector tractor‐hiring services in Nigeria are indeed constrained. However, we also find heterogeneity among these owner‐operators. In particular, those who buy tractors from private markets or from private individuals are more efficient than those who receive tractors through government programs, providing services to a greater area at lower costs, including during off‐peak seasons, sometimes selecting machinery types according to soil types. We conclude with a discussion of some policy implications. 相似文献
25.
In a discounted expected-utility problem, tomorrow's utilities are aggregated across tomorrow's states by the expectation operator. In our problems, this aggregation is accomplished by a Choquet integral of the form ∫ u d P α , where α specifies uncertainty aversion. We solve all finite-state problems by either a closed form or a finite-dimensional iteration, and show that uncertainty aversion reduces the perceived return on investment, thereby decreasing the saving rate given elastic preferences and increasing the saving rate given inelastic preferences.
JEL Classification Numbers: C61, D81, D9. 相似文献
JEL Classification Numbers: C61, D81, D9. 相似文献
26.
Mulubrhan Amare Bekele Shiferaw Hiroyuki Takeshima George Mavrotas 《Agricultural Economics》2021,52(1):19-36
This paper uses multiple rounds of panel data to assess the distributional implications of the variability in agricultural productivity in Nigeria and Uganda. It uses both a conventional decomposition and a regression‐based inequality decomposition approach to estimate the impact of climate‐induced variability in agricultural productivity. To mitigate the endogeneity associated with unobserved time‐invariant and time‐variant household fixed effects, we use rainfall shocks as a proxy for estimating the exogenous variability in agricultural productivity that affects consumption. Results suggest that a 10% increase in the variability of agricultural productivity tends to decrease household consumption by 38 and 52% on average for Nigeria and Uganda, respectively. Controlling for other factors, variability in agricultural productivity contributed to between 25% and 43% of consumption inequality between 2010 and 2015 for Nigeria; and 16% and 31% of consumption inequality between 2009 and 2011 for Uganda. We also show that variability in agricultural productivity increases changes in consumption inequality over time. 相似文献
27.
Hiroyuki Kashima 《Asia-Pacific Financial Markets》2001,8(1):35-43
This paper discusses an improvement of the Parameter Certainty Equivalence method in portfolio selection. Specifically, we derive methods of portfolio selection that are superior to the Parameter Certainty Equivalence method from the viewpoint of maximizing expected utility. We additionally derive such a method from the Bayesian approach. 相似文献
28.
In much of rural Africa, high transaction costs limit farmers’ market participation and thus their potential for income growth. Transaction costs can affect not only whether a farmer sells product but also whether sales occur at the farm gate or at a market. If production behavior is related to a chosen sales location, then analysis of interventions can be improved by explicit consideration of the decision of where to sell. This article develops a double‐selection model that explains consumption and production decisions by semi‐subsistence farmers who first decide whether to be a seller and then whether to sell at the farm gate or at an off‐farm location before deciding on production and consumption. The study tests the validity of this dual‐criteria model against a single‐criterion model in which a grower first decides to be a seller and then decides production, consumption, and sales location simultaneously. The results suggest that the dual‐criteria model provides more information than the single‐criterion model using a sample of cassava producer in Benin. 相似文献
29.
The object of this paper is to investigate the long‐run behaviour of rent‐seekers in a situation where they incur negative expected payoffs due to increasing returns to rent‐seeking expenditures. To this end, we embed the one‐shot rent‐seeking game presented by Tullock (1980) in the war‐of‐attrition framework. In this multi‐period setting, each player not only determines his or her rent‐seeking expenditure but also chooses a mixed strategy on whether to stay in or exit from rent‐seeking competition in each period. JEL Classification Numbers: D72, C72, L12 相似文献
30.
The majority of farmers in sub‐Saharan Africa (SSA) lack the means to mitigate the impact of risks associated with rainfall and commodity prices due to capital constraints and the imperfect insurance market in these countries. Because most SSA farmers are risk averse, they may be willing to invest in productive assets that can mitigate the impacts of such risks if their capital constraints are relaxed through external financial assistance. We test this hypothesis by using panel data on investment behavior of Nigerian farmers who received financial assistance on productive assets. The empirical results show that farmers facing higher rainfall risks are more likely to invest in irrigation pumps that can mitigate the impact of rainfall risks, while those facing higher risks of white gari price are more likely to invest in milling machines that enable them to process cassava into flour instead of gari, which supports our hypothesis. 相似文献