Supply-side theory of growth – Undergraduate Economist

An Economic Analysis of the ‘Make in India’ Program

The ‘Make in India’ program webpage states as its objectives the following: (1) to facilitate investment, (2) to foster innovation, (3) to enhance skill development, (4) to protect intellectual property, and (5) to build manufacturing infrastructure. This short blog post focuses of selected aspects of the program as laid out of the webpage and then critically examines them and the economics underlying them.

Selected features of the program from the webpage are outlined in this paragraph. ‘The process of industrial licensing has become simpler and for some, the validity has been extended. There is an impetus to develop industrial corridors and smart cities. The cap of foreign direct investment (FDI) in defence raised from 26% to 49%, with further easing of FDI norms underway in the construction sector. Labour-intensive sectors such as textiles and garments, leather and footwear, gems and jewellery and food processing industries, capital goods industries and small & medium enterprises will be supported. Further, National Investment & Manufacturing Zones (NIMZ) will be set up. Incentives for the production of equipment/machines/devices for controlling pollution, reducing energy consumption and water conservation will be provided.

To summarize, the government will provide incentives for the construction of green technology while at the same time making it easier for firms to get environmental (land) clearances. Setting up industrial zones is a good idea because it reduces transportation costs and common infrastructure can be better streamlined; also, they should be located at a safe distance from populated areas. Investment by foreign companies is beneficial if they these investments entail the learning of new technology and scientific and managerial collaboration. FDI should not be forthcoming solely to exploit the low wages prevailing in India.

Undoubtedly, India needs to revive its manufacturing sector. Globally, Indian manufacturing products need to be competitive. To achieve these two objectives, the present government’s ‘Make in India’ program is necessary. As always, we need to wait and see how the program works in practice. This program is aimed at improving the supply-side of the economy ‘ improving the capacity to supply manufactured products. Creating of physical infrastructure will also have multiplier effects on agricultural and services sector.

Two related issues need to be raised in this context. Firstly, what about economic ‘reforms’ targeted at the demand-side of the economy’ Secondly, isn’t it more prudent to validate the supply of manufactured commodities from domestic demand than foreign demand’ Let us take each of them in some more detail. Raghuram Rajan made the second point in his December 12, 2014 Bharat Ram Memorial Lecture. Ashok Desai, in the Outlook, criticises the previous government for their corruption scandals and economic schemes which, according to Desai, primarily benefited the non-poor and due to their consumption raised the industry and services growth rates.

While supply-side measures are important, we must not lose sight of demand-side measures ‘ such as public investment in health and education. The recent cut in public health expenditure by the current government is indeed very alarming. Equally important is a good labour law framework which ensures good working conditions for workers and a decent minimum wage. This will ensure adequate domestic demand, as our workers will earn above-subsistence incomes and be healthy. If the core institutions of health and education (and clean environment) are also strengthened alongside the labour market ones, then domestic demand-led growth will not be difficult to manage.

The Macroeconomics Underlying the Economic Survey of India 2013-14

This blog post critically evaluates the first two chapters of the Economic Survey of India 2013-14 in order to get a sense of the macroeconomic theory underlying it. [This blog has assessed previous ones for the years:2012-13,2009-10;2010-11;2011-12.] What conceptual framework does the Economic Survey adhere to, implicitly and/or explicitly’ This is of significance not just for those interested in theory but also for those who want to understand how economic policies are formulated. Attention will be mainly divided among the following macroeconomic themes: (1) role of investment in economic growth, (2) labour market flexibility and economic growth, (3) policies emanating from (1) and (2), and (4) the overarching aim of economic policy.

It is well-known and widely accepted that investment, be it private or public, is necessary for economic growth. By investment, we primarily refer to additions to fixed capital ‘ machinery, tools, storage facilities, transport equipment, etc. Investment in education, health and environment should also be included, for they expand the productive capacity of the economy in the long term. Two questions may be posed now. First, what is the source of investment’ Second, what ensures that the growth in productive capacity will be matched by an equivalent growth in demand’

Prior to the path-breaking work of Keynes, it was widely believed that investment is savings constrained and that saving and investment are equilibrated through variations in a sufficiently sensitive interest rate. Keynes convincingly argued that investment is not savings constrained, rather, it is finance constrained. Moreover, he demonstrated that it is activity levels (output and employment) which equilibrate saving and investment, and the causation runs from investment to saving. This is the principle of effective demand, also to be found in the work of the Polish economist Kalecki. The Economic Survey adopts the pre-Keynesian view, which, not surprisingly is still around, embedded in the neoclassical school of economics ‘ the dominant school in economics teaching and publishing. This marginalist idea of saving-investment equilibrium is mirrored by the market equilibrium for ‘capital’ ‘ the demand for and supply of capital is brought into equilibrium by variations in the interest rate; this is nothing but the marginal productivity theory of distribution.

Implicit in the Economic Survey is the pre-Keynesian view, an essential part of neoclassical economics. ”higher investment required for raising growth had to come from higher domestic savings” (p. 9). However on p. 11, the slowdown in investment growth is attributed to policy uncertainty, sluggish demand and high interest costs. Despite the reference to demand deficiency on the same page (on p. 13, it is acknowledged that an increase in aggregate demand has a positive impact on economic growth), the conclusion on the same page supports ‘structural reforms’ and the elimination of ‘supply-side bottlenecks’. Also, Keynes’s finance-constrained investment view is expressed when the ‘bank credit flow to industry’ is briefly discussed (p. 25); due to sluggish demand, the demand for credit was lower. [See an earlier post on the determinants of investment.]

Income earners make saving decisions (commonly referred to as households or wage earners) whereas it is the firms and entrepreneurs who make investment decisions in a decentralized economy as India. Firms also make use of their retained earnings for purposes of investment (p. 14). The intermediation of saving and investment is carried out via the banking and financial system ‘ the suppliers of credit, so to speak. The point I wish to highlight is this: abundant savings or a low rate of interest is not sufficient for (physical) investment. There should be demand for the commodities and services produced. Also, there are no mechanisms which ensure that supply will create its own demand, famously known as the Say’s Law. At various points, it appears that the architects of the Economic Survey believe in the Say’s Law. In other words, they do believe that a growth in productive capacity will engender an equivalent growth in demand.

Policy uncertainty & investment

Policy uncertainty emanates from ‘difficulties in land acquisition, delayed environmental clearances, infrastructure bottlenecks, problems in coal linkages, ban on mining in selected areas, etc.’ (p. 11; also see p. 33). This particular statement is reflective of a view which does not take common property resources, ecosystems and environmental sustainability seriously and with caution. The uncertainty in policy vanishes when the government is clear, transparent and committed to socio-economic and environmental justice. Policy uncertainty arises from vague, untimely and arbitrary policy decisions. In fact, this approach to securing higher economic growth is inconsistent with the position adopted in the Economic Survey on sustainable development and climate change which, on paper, appears committed to environmental justice and inter-generational equity. And it is such inconsistencies which cause confusion and policy uncertainties for firms wishing to invest in India.

The marginalist growth theory (Solow’s growth model being the exemplar) makes use of the marginal productivity theory of distribution. Put simply, a growth in the factors of production (or factor endowments) is sufficient for economic growth. And, supply creates its own demand. According to this view, widely taught in macroeconomics courses, growth is supply-side. The impediments to growth then become imperfections in the factor markets, particular labour markets. Consequently, policy is supposed to make labour markets flexible/free/perfect so that the economy can gravitate towards the full-employment position. But, this theoretical view has been shown to be unsatisfactory given the logical problems associated with the marginal productivity theory of distribution. In addition, the creation of a just society must necessarily ensure a minimum wage for all workers sufficient for a decent living, the scope of which ought to widen as societies progress.

According to the Economic Survey, ‘[t]he inflexibility of labour markets have prevented high job creation’ (p. 30). For those brought up in the marginalist tradition, the usual culprit is the labour market. Of course, labour laws, like any other law, should be just and provide opportunities for workers to support each other given that the employers are more powerful than the workers. Also, working conditions, social security, equal opportunity across gender, caste and class and so on must be provided to the workers. This is the responsibility of institution builders ‘ the government together with the civil society. Yes, labour market reforms are necessary: ‘changes in the legal and regulatory environment for factor markets’ (p. 31).

Reforms, unfortunately, have come to possess a single meaning in economics and politics. Reforms have come to refer to policies which make markets more free. There is no reason why reforms need to be thought of in this manner. Politics is about possibilities, and economics suggests some ways of engineering these possibilities in order to provide a decent life to all. There is nothing intrinsically good in any economic or political sense about reforms. The efficacy and goodness of reforms lies in its details.

‘Factor markets such as those for labour, land, and capital, however, remained largely unreformed. This has proved to be a constraint for growth and employment generation’ (p. 48). This statement also is very marginalist or neoclassical in nature. Moreover, one has to be cautious for the three factors of production are very different from one another. Capital refers to produced means of production ‘ commodities and services. Barriers to entry and exit need to be reduced and firms need to operate in a competitive environment. Land is a resource which needs to be treated very carefully and on a case-by-case basis; it has immediate impacts on livelihood as well as on the natural environment. Labour market constitutes people, and there should be strong social security for workers and good working conditions.

III

Policy prescriptions include primarily supply-side measures. This is not surprising owing to the Economic Survey being fundamentally neoclassical. Investment, a component of aggregate demand, is rightly considered crucial. But, public investment is not much favoured. Investment, as noted in section I, will be revived if supply bottlenecks are removed ‘ that is, projects get easily cleared. Policies are targeted at boosting productivity. Provision of physical and social infrastructure is of utmost importance. A market for food (reducing distortionary interventions in agriculture) needs to be created. Manufacturing must be improved.

What is the central aim of these economic policies’ Repeatedly, in these two chapters, the objective is to create a ‘well-functioning market economy’ (p. 29; also 26, 46). This is much needed, but the ‘reforms’ need to be socially and environmentally sensitive. Also, just as with reforms, many different configurations of a market economy are possible. This must not be forgotten, and nor should social, economic and environmental justice be overlooked. To conclude, I would add a few words to the first sentence in chapter 2: ‘The defining challenge in India today is that of generating employment and growth’ (p. 29) which is economically, socially and environmentally inclusive. These additional words make all the difference, both in terms of economics and politics.

Two Fundamental Objections to Marginalist Economics

In the past, several posts on this blog have raised dissatisfactions and have expressed discontent with the prevalent orthodoxy in economics ‘ neoclassical economics (more accurately, marginalist economics). This post is similar in intent as the previous posts, but it chooses to focus on, what I deem to be, the two most theoretically and empirically inadequate tenets of marginalist economics: (1) the marginal productivity theory of (income) distribution and (2) the supply-side growth theory.

Equilibrium prices and quantities of commodities and factors of production (such as labour and ‘capital’) are determined simultaneously in marginalist economics. Distribution is endogenously determined according to the relative scarcity of factors, i.e., based on the demand and supply of factors. Under conditions of perfect competition, in equilibrium, the wage rate equals the marginal product of labour and the profit rate equals the marginal product of ‘capital’. That is, there is no surplus in the marginalist theory of value and distribution. The origin of the marginal principle is to be found in Ricardo’s discussion of intensive rents. This principle has been illegitimately extended to labour and to ‘capital’. In marginalist production theory, labour is freely substitutable with ‘capital’. The famous Cobb-Douglas production function is based on the substitutability of the two factors of production. The use of the aggregate production function has been shown to be logically unsound (due to problems of not just measurement but also aggregation of ‘capital’) and therefore its applicability in empirical analysis is severely undermined. But, this logical critique, famously known as the Cambridge Capital Controversies, remains ignored.

Underlying the supply-side theory of growth is the marginal productivity theory of distribution. Relative scarcities of the factors induce changes in their prices such that the demand for factors equals their supply. This implies that, in equilibrium, all factors are employed. The real wages are assumed to be sufficiently sensitive to disequilibrium in the labour market such that they adjust in order to render the labour demand equal to its supply. And, the aggregate production function states that a growth in the factors will lead to a growth in output. In other words, if the labour and ‘capital’ endowments are increased, there will be higher growth. Aggregate demand adapts to aggregate supply and the possibility of an aggregate demand deficiency is ruled out. Slight modifications have been made to this theory in order to explain the presence of unemployment. These modifications take the form of rigidities of the real wage, which cause labour unemployment. In marginalist theory, one of the explanations for the presence of unemployment is labour market rigidities. If these rigidities are absent, labour will tend to be fully employed. Such theories have come under severe criticism and rightly so.

To conclude, marginalist economics is unsatisfactory on logical grounds. Moreover, it does not perceive the possibility of an aggregate demand deficiency. Lastly, unemployment is seen to be a consequence of imperfections or rigidities and not as permanent feature of competitive economies.

The 2012-13 Economic Survey of India (with Raghuram Rajan)

The Economic Survey (ES hereafter) is a document which presents the macroeconomic situation of India during a given period. It is drafted by the Ministry of Finance (MoF), Government of India with the Chief Economic Advisor (CEA) playing a chief role. The current CEA is Raghuram Rajan. At the MoF website, detailed profiles of the people who drafted the Economic Survey 2012-13 are available.

This blog has analysed the previous three economic surveys (2009-10; 2010-11; 2011-12) undertaken under the guidance of Kaushik Basu, the predecessor to Rajan. The current analysis is broadly divided into two parts. The first part deals with the ES‘s view of economic growth and employment and its theoretical underpinnings. Here, we discuss the gloomy industrial performance, issues surrounding productivity of labour and the role of government expenditure. The second part focuses on select policy proposals and examines it in brief; the debates surrounding oil subsidies, high current account deficit and attracting foreign capital fall under this section.

The underlying theory of growth outlined in the ES is what economists’ term supply-side growth theory. Growth in output per worker is determined by growth in the supply of factors ‘ labour and capital (more precisely, produced means of production). Whatever be the growth in their supply, the demand will automatically adjust. In other words, aggregate demand adapts to aggregate supply and investment adjusts to saving. Thus, in equilibrium, there can be no unemployment of factors, including that of labour. It will presently be seen that it is such a framework which enables the ES to recommend a reduction of government expenditure which will apparently promote growth.

Rajan deserves praise for underscoring the importance of quality employment right in the beginning of the ES. In Chapter 2 entitled ‘Seizing the Demographic Dividend’, a case is made for improving labour productivity and for increasing both the quantity and quality of employment.

Policymakers are usually focused on short-run economic management issues. But the short run has to be a bridge to the long run. The central long-run question facing India is where will good jobs come from’ Productive jobs are vital for growth. And a good job is the best form of inclusion. (p. 26)

‘Productive jobs’ refers to jobs where the productivity levels are high. Growth in per capita income is primarily determined by labour productivity, growth in the working population and growth in the working population who find jobs ‘ the employment rate (p. 30). Labour productivity rises with greater investment in physical and human capital. The reason for low agricultural productivity is identified to be low investment and therefore the solution proposed is an increase in capital per worker (p. 32). Yes, technological advances are necessary but so are transformations in agrarian relations pertaining to caste and gender. Moreover, the presence of inter-linked markets makes agricultural markets very coercive, and less competitive.

Furthermore, low labour productivity is linked to rigid labour laws and excessive government regulations. It is of course necessary that the current labour laws be examined and improved upon whereby workers are provided decent wages, adequate sick and maternity leaves, indexation with inflation, etc. As the chapter rightly concludes, ‘We need to examine carefully whether regulations constrain businesses excessively and, if so, strip away the excess regulation while ensuring adequate protection and minimum safety nets for workers’ (p. 54).

But, the question remains: what is the mechanism by which employment rises’ The answer provided is that saving generates investment and investment generates employment. ES points out that investment can be increased by increasing saving.

If India were to follow a similar path [like that of China], it would need to increase savings and investment, both of which will follow from the demographic transformation. But it will also have to increase the intrinsic productivity of jobs…. (p. 31)

But, why will aggregate investment increase without a corresponding rise in aggregate demand’ And, where will this increase come from if all the individuals save more, based on the recommendation by the ES‘ (One only needs to recollect the ‘paradox of thrift’.) Investment is undertaken so that the commodities and services that are being produced can be sold. Only if they are sold can profits be realised.

The adherence to a supply side theory of growth is clearly visible in the chapter dealing with industrial performance (Chapter 9). Owing to this belief, the analysis carried out in that chapter mistakes correlation for causation and also gets the causal chain wrong.

The moderation in industrial growth, particularly in the manufacturing sector, is largely attributed to sluggish growth of investment, squeezed margins of the corporate sector, deceleration in the rate of growth of credit flows and the fragile global economic recovery.

Low investment is considered to be the primary cause of poor industrial performance with a slight mention of decline in foreign demand. Further, the authors’ of the ES maintain that a low investment has resulted in excess capacity (obviously!) and also a decline in capacity utilization. Yet, they fail to point out that it is a fall in demand for industrial products which has caused the fall in capacity utilization and to a reduction in investment! Although, unconnected to their narrative of industrial decline, they note a reduction in the rate of growth of sales of listed manufacturing companies. The rate of growth ‘declined from an average of 28.8 per cent in Q1 of 2010-11 to 11.4 per cent in Q2 of 2012-13, the latest quarter for which comparable set of data are available.’ Hence, in order to increase investment, the authors’ want to attract foreign direct investment (FDI). But, the problem is not a lack of investment but a deficiency of demand.

In a similar line of supply-side thinking, the ES argues that fiscal consolidation or a lowering of government expenditure will result in a ‘higher growth in real GDP.’ As the ES clearly states,

Staying on the indicated fiscal consolidation path is critical to sustaining the desirable macroeconomic outcomes not only in terms of higher growth in real GDP and lower inflation, but also in easing the financing of the widening current account deficit (CAD), for which India’s sovereign credit rating is important. (p. 56)

While it is unfortunately true that credit rating agencies and foreign capital considers government spending to be a threat, the claim that fiscal consolidation enables faster growth seems to lack any solid proof. Unless, we treat inflows of foreign capital to be a source of sustainable and high economic growth!

In sum, the theoretical framework underlying the current Economic Survey is problematic because of its inability to explain labour unemployment (or excess capacity) as a permanent feature of capitalist economies. This unemployment is primarily owing to a deficiency of aggregate demand. Furthermore, owing to the supply-side underpinnings, the recommendations are to increase savings. This is clearly stated as objectives in the ‘Press Statement on Release of Economic Survey: 2012-13’. (1) ‘Increase government savings, especially by reducing distortionary subsidies’ and (2) ‘increase opportunities for savers to get strong real returns on financial investment.’ Therefore, a deficiency in saving is identified as the main hurdle for the Indian economy.

In this part we briefly examine the reasons why fuel subsidies are harmful to India in the long run and the problems surrounding India’s current account deficit. Fuel is a basic commodity in the sense that it enters as an input into the production of all commodities. And, petroleum is an exhaustible resource. The price in the international market does reflect its scarcity. A high price indicates that demand is over stripping supply. Fuel subsidies are a short term solution which takes the burden of innovation from Indian oil companies and the responsibility of proper use from Indian consumers onto the shoulders of the Government. Yes, workers need to be insulated from high oil prices. One way to do this is by indexing wages to inflation. A high fuel price also quickens the search for alternative sources of energy and better agricultural and manufacturing machinery which uses less fuel. One final point. The argument that fuel subsidies need to be reduced so as to reduce budget deficit so that there is economic growth is, as pointed out earlier, based on the flawed economics of supply-side growth theory.

India’s current account deficit has reached worrisome levels. The value of imports has been rising mainly on account of higher international oil price. Exports have fallen due to a slowdown in foreign demand. India’s main imports are (1) petroleum, (2) pearls (for re-export) and (3) gold. Owing to the surplus in invisibles (services such as transport and software; and private investment income transfers) some of the deficit in the merchandise trade balance is absorbed. Apart from the surplus in invisible trade, the other avenue for meeting the merchandise trade deficit comes from the capital account. The major source of (net) capital inflow is foreign investment, which comprises foreign direct investment and portfolio investment. The other source of foreign exchange is loans. Given this situation, the Economic Survey proposes measures which attract foreign investors and by imposing duties which make gold imports costlier. Both these are extremely short-sighted measures and the former one makes economic growth to hinge crucially on foreign capital which is not advisable. The long term solution, as suggested in the case of oil subsidies, ought to be technological innovations in the export industries so that they are internationally competitive. Also, the propensity to imports should be reduced by promoting industries which can produce similar commodities. Moreover, there is a huge potential in the Indian tourism industry. And, as the ES also recognises, ‘the best way to reduce gold imports in a sustainable way will be to offer the public financial investment opportunities that generate attractive returns.’

Conclusion

The move to reduce government spending and measures which attract foreign capital are therefore based on the flawed supply-side theory of economic growth; we require an increase in employment and incomes and in aggregate demand. Moreover, the proposed measures to deal with structural problems of the Indian economy are not just short-term but short-sighted and unsustainable in the long-run. These measures also discourage technological innovations especially in the area of alternative energy sources. ‘Oligopolistic markets should be replaced with competitive markets with good labour laws which ensure that part of the productivity gains go to the workers.