Modelling the heterogeneous effects of stocking rate on dairy production: an application of unconditional quantile regression with fixed effects

Ma, Wanglin; Renwick, Alan; Greig, B. J. W.

doi:10.1080/00036846.2019.1602710

Cited by 14 publications

(15 citation statements)

References 27 publications

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“…The coefficient of the business type variable in Table 2 is negative and statistically significant, whereas in Table 3 it is positive and statistically significant, suggesting that relative to owner-operators, share-milkers perform significantly better financially but not physically. The significant coefficient of the cattle breed variable in Table 2 suggests that, relative to farms with herds comprising other cattle breeds (e.g., Friesian, Jersey, and Ayrshire), farms with crossbred cows have greater dairy productivity, a finding that is consistent with previous studies (VanRaden and Sanders, 2003;Ma et al, 2019b). Tables 2 and 3 also show that both milking frequency (i.e., twice a day) and stocking rate contribute to higher dairy productivity and profitability.…”

Section: Short Communicationsupporting

confidence: 84%

Short communication: The relationship between farm debt and dairy productivity and profitability in New Zealand

Renwick

Zhou

2020

Journal of Dairy Science

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For a variety of reasons, dairy sector indebtedness has increased in recent years. However, it is not clear whether increased debt boosts or damages the economic performance of dairy farms. This paper provides empirical evidence by exploring the effects of farm debt measured by debt-to-asset ratio on dairy productivity and profitability, using the New Zealand DairyBase data of 2,637 dairy farms for a 10-yr period 2005 to 2014. A fixed-effects panel data model is utilized for the empirical analysis. The findings show that farm debt is significantly and negatively associated with both dairy productivity and profitability. We find that dairy productivity is positively determined by production intensification, irrigation intensity, milking frequency, cattle breeds and stocking rate, whereas dairy profitability is positively affected by milk price, business type, milking frequency, and stocking rate. Further analyses reveal that the debt ratio significantly decreases both the technical efficiency of dairy farms and return on assets; a high debt ratio increased dairy productivity between 2005 and 2009, whereas it decreased dairy productivity between 2011 and 2014; the effects of the debt ratio on dairy profitability vary over time. The analysis for a 10-yr balanced panel data (250 farms) shows that debt ratio does not significantly affect both dairy productivity and profitability, which suggests that the presence of farm-specific attributes such as farm life cycle and managerial ability of dairy farmers may also affect the debt ratio and through this farm performance.

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Section: Short Communicationsupporting

confidence: 84%

Short communication: The relationship between farm debt and dairy productivity and profitability in New Zealand

Renwick

Zhou

2020

Journal of Dairy Science

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“…To explore this possibility, we also employ a quantile regression model. Although much of the previous research has used a conditional quantile regression (CQR) model, one major drawback of this approach is that the quantiles are defined conditional on the employed covariates, and it is impossible to add or delete control variables freely without redefining the quantiles (Firpo, Fortin, & Lemieux, ; Ma, Renwick, & Greig, ). A UQR model can overcome this drawback of CQR.…”

Section: Empirical Strategiesmentioning

confidence: 99%

Impact of Internet use on economic well‐being of rural households: Evidence from China

Wang

Zhang

et al. 2020

Review Development Economics

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148

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The expansion of the Internet in developing countries has important implications for the economic development of rural areas. Although many studies have investigated various benefits of Internet use, little attention has been paid to find the relationship between Internet use and the economic well-being of rural households. This paper, therefore, investigates the effects of Internet use on household income and expenditure, using a sample of rural households from China. Both endogenous treatment regression (ETR) and unconditional quantile regression (UQR) techniques are used to identify the homogenous and heterogeneous effects of Internet use, respectively. The ETR results show that Internet use increases household income and expenditure significantly. However, the UQR results reveal that Internet use has a larger impact at the upper distributions of household income and expenditure.

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“…2015; Ma et al . 2019, 2020). Given that the UQR model enables to overcome the weakness of the CQR model, and it provides a better estimate, the UQR model is used in the present study.…”

Section: Theoretical Framework and Econometric Approachmentioning

confidence: 99%

Farm machinery use and maize yields in China: an analysis accounting for selection bias and heterogeneity

Zhou

et al. 2020

Aus J Agri & Res Econ

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Crop production in developing and emerging countries is increasingly dependent on the usage of farm machinery. However, it remains unclear whether low-productive and high-productive farmers benefit equally from farm machinery use. To address the research gap, this study examines the potential heterogeneous effects of farm machinery use on maize yields, using an unconditional quantile regression model and survey data from China. We employ a control function approach to address the selection bias issue associated with farm machinery use. The empirical results show that the use of farm machinery significant increases maize yields for all the selected quantiles (except for the 80th quantile); the low-productive farmers tend to benefit more from farm machinery use relative to their high-productive counterparts; and farm machinery use reduces the inequality and variability of maize yields.

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Modelling the heterogeneous effects of stocking rate on dairy production: an application of unconditional quantile regression with fixed effects

Cited by 14 publications

References 27 publications

Short communication: The relationship between farm debt and dairy productivity and profitability in New Zealand

Short communication: The relationship between farm debt and dairy productivity and profitability in New Zealand

Impact of Internet use on economic well‐being of rural households: Evidence from China

Farm machinery use and maize yields in China: an analysis accounting for selection bias and heterogeneity

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