IMPACT OF MINANGKABAU’S OUT MIGRATION: MERANTAU TO HOUSEHOLD LABOR ALLOCATION IN WEST SUMATRA, INDONESIA

Merantau is a unique form of outmigration in Minangkabau communities. The Minangkabau’s strong tendency to migration as a rite de passages especially for young men. They migrate from rural areas to looking for experience, prosperity and education. Its also places a heavier burden on household left behind to make up for lost local labor. The impact of outmigration on agriculture, especially on household left behind has long been debated. Thus identifiying the impact of migration on household in rural origin is an open empirical questio. The main purpose of this paper is to analyse impact of merantau to household left-behind labor allocation in on-farm, off-farm and non-farm activity. The paper uses treatment regression techniques to asses impact merantau on household labor allocation. The result provide that merantau contributes to increase hired labor on paddy farming. Paddy farming operations used 89% hired labor. Merantau reduce labor force participation for household members left behind and increase non-farm activity. Base on the findings, this study contributions to the literature by providing a wider understanding of labor supply decisions in rural household that have migrant and receive financial transfers.

Indonesia is the world's archipelagic country with five major islands among more than 30.000 of islands. Its inhabited by more than three hundred ethnic societies. This condition has been conducive to outmigration between and beyond the islands. The Minangkabau society, one of the largest matrilineal society, have been noted for a high level of outmigration called merantau. Its means voluntary migration from homeland to other places with the aim of earning a living or seeking further knowledge or experience (Naim, 1979). Recently Minangkabau society are found throughout almost in the regions of Indonesia.
The type of merantau is mainly from rural to urban areas. As a typically rural areas, agriculture sector has long been considered to play important role in West Sumatra's economic development. In this province, where paddy farming is dominant, most people especially in rural areas make a living and depends from it. Programmes for increased paddy production is focused on intensification, diversification, expantion and implementation of new technology. Among the obstacles paddy farming faced were land degradation, technological and infrastructure shortcomings, poor financial support and loss empoyment because of outmigration. In paddy production, access to labor very substantially Perantau, Minangkabau migrants, do not always move with their entire family such as spouse, children and parents. In addition places a heavier burden on household left behind to make up for lost employment. The impact of outmigration on agriculture, especially on household left behind has long been debated. Thus identifiying the impact of migration on household in rural origin is an open empirical question. On the one hand, outmigration through financial transfers, positively to increasing household income (William, 2007;McCarthy,2006;Adam, 1996;Cadwell, 1968), make available capital stock in agricultural production (Black, 1993) and reducing poverty (Acharya and Gonzales, 2012). On the other hand, the physical absence of the migrant may have multiple adverse effects on family member's education, health, labor supply and social status (Démurger, 2015), reducing farm production (Rozelle et.al, 1999;Maharjan, 2013;Taylor and deBrauw, 2003) and labor market partisipation as well as the number of hours worked (Rodriquez and Tiongson, 2001) but also raise off-farm work (Brad, 2007).
Rural household labor resources include non only working on farm but also off-farm and non-farm work. Farm household allocated labor resources between farming, off-farm and non-farm employment to maximize their labor return (Polzin and MacDonald, 1971). Meanwhile Yiqiong (2015) said that household diverdified their labor force to increase income, welfare and avoid risks. The main objectives of this study is to identifying household labor allocation who had migrant members and impact of merantau to household labor allocation.

METHODS OF RESEARCH
This study was conducted in three villages of three districs: Sulit Air Village of the Solok district, Sungai Tarab village of the Tanah Datar district and Koto Tuo village of the Padang Pariaman district, West Sumatra Province, Indonesia. There are many reason why those villages and districs are selected the study area. First, in those areas as known highly level of merantau. The second reason is that in Minangkabau communities, household's income is mostly from agriculture sector especially paddy farming.
The unit samples are household whose produce paddy. They were selected randomly in each village, so the total respondens are 141 household. The study analyses data obtained interviews of work hours household's paddy farming for one year, using structural questionnaire. The data were analyzed using multiple regression with Statistical Analysis System (SAS) version 9.03 to estimate impact of merantau to household labor allocation in paddy farming. Household labor allocation model in this study based on Barnum and Squire (1979) model. This model allows to assess the impact of migration on labor supply and household can hired labor. The central past of this study was consentrated on the household labor allocation problem. Household behavior describes a semi-commercial family farm with a competitive labor market. Household labor allocation model as follows: a. Household Labor Allocation On-Farm Work: The names of variables in those models are listed details in Table 1.

RESULTS AND DISCUSSION
Determinant of merantau described by number of perantau and financial transfers (refers to remittances). Minangkabau's perantau is generally highly concern for welfare of their family and rural origin. They send financial transfers through friends, the post office, bank or visiting homeland.
Impact Merantau On-Farm Labor Allocation. Table.2 presents parameter estimated. On-farm labor allocation consist for household labor and hired labor. The number of perantau has negatif impact on men's household labor and positif impact on women's hired labor as expected. Raising in household labor supply due to migration reducing men's household hours worked on paddy farming, on the contrary increasing number of women's hired labor.
The negatif sign of HHL m variable, suggested related to ageing phenomenon in agriculture areas. According to Fan et.al (2014) findings alteration demographic composition of the agricultural work force in US. The average worker today is older and more likely to be female. They hipothesized that such worker might be less likely to migrate. Kreager (2006) said that in Rao-Ra, one of the higher level migration in Tanah Datar district, activity merantau was change social structure and ageing phenomenon. This indicated from positif sign in household head age (HHA) on men's hired labor. The value of HHA coefficient is 3.58 means raising on 1% HHA will be increase men's hired labor 3.58 hours worked.
Futhermore outmigration of family members including young men was independently associated with raising leisure time allocation for parents or non-farm activity any else. Financial transfers perceived support household well-being and reducing on-farm labor allocation. William (2007) called this phenomenon as "moral hazard" such as impact of flows financial transfers from migrant or perantau to family left behind.
Based on the data ( show in Figure 1) can descibing why men's household labor decreasing ? We suggest it associated with sort of paddy operations. Involvement of men's household labor in all of paddy operation is less. Generally they workfield on a part of land preparation (such as slashing or dibbling bar) and fertilization. Plowing land used tractor machine and harvesting was worked by men's hired labor. On the other hand both women's household and hired doing transplanting, weeding, fertilization and also harvesting. This study reveal that migration make "agricultural feminism" as supported by Sifelani (2009), Katz (2003) and Schmook (2008). With the result, hired labor were contribution on paddy operations about 89% and household labor 11%. Note: ***) significant at 1%; **) significant at 5%; *)significant at 10%; ns) not significant.
Financial transfers shows no significant on labor allocation in paddy farming. It may indicated that financial transfer from perantau do not invested in paddy farming. Maharjan et.al (2013) mentioned that migration undermines the agricultural sector which remittances are seldom invested in land or other capital inputs needed to improve the agricultural sector.
To end the analysis variables size (LS), paddy production (PP) paddy farming affected by land corn production in Nusa Tenggara increase when hired labor added women's household labor, its Figure 1 Impact Merantau On Off labor resources, rural household labor resources to different sectors activity and including migration. welfare, the other reason is to  that influence on men's hired labor with sign (PP) and household head age (HHA). Demand land size and household head age. This result Tenggara Timur (Leki et.al., 2016). Paddy added. In other things women's hired labor indicated by negatif sign in estimation result.

-On-Farm Labor Allocation in Paddy Farming
Off-Farm and Non-Farm Labor Allocation. In household prefer to labor force diversity employment.
sectors for employment such as on-farm, migration. Motivated by the common is to increase to avoid risks. Household expenditure enhancement disposable income resources for non-farm activities. village which has higher level activities (see Figure 2).

CONCLUSION
The lack of family labor impact on more hired labor and a determinant of remmitance labor or off-farm activities. The peasant do not invest in crop use it on non-farm activities goods and for more leisure. The feminisation on agriculture due The findings of this study been cultural and natural agricultural sector must be government major source of lifelihood organization such as SAS (Sulit PKDP (Persatuan Keluarga Daerah